WorldWideScience

Sample records for nach dem sm

  1. Auf der Suche nach dem Unendlichen.

    Science.gov (United States)

    Fraser, G.; Lillestøl, E.; Sellevåg, I.

    This book is a German translation by C. Ascheron and J. Urbahn, of "The search for infinity: solving the mysteries of the universe", published in 1994. Diese Buch beschreibt anschaulich die Meilensteine, die der Mensch seit der Antike auf der Suche nach dem Unendlichen erreicht und hinter sich gelassen hat. Es enthält Kurzbiographien der wichtigsten Forscher, verständlich geschriebene Texte sowie Erläuterungen der entscheidenen Fachtermini.

  2. Zusatz- und Weiterqualifikation nach dem Studium

    Science.gov (United States)

    Domnick, Ivonne

    Ist der Bachelor geschafft, stellt sich die Frage nach einer Weiterqualifizierung. Neben einem Einstieg ins Berufsleben kann auch ein Masterstudium eventuell weitere entscheidende Bonuspunkte für den Lebenslauf bringen. Mit Zusatzqualifikationen aus fachfremden Bereichen wie Betriebswirtschaft oder Marketing ist es für Naturwissenschaftler leichter, den Einstieg ins Berufsleben zu schaffen. Viele Arbeitgeber sehen gerade bei Naturwissenschaftlern eine Promotion gerne. Hier sollte genau abgewogen werden, ob sie innerhalb einer bestimmten Zeitspanne zu schaffen ist. Auch nach einem Einstieg in den Job lässt sich der Doktortitel unter Umständen noch nachholen. Ebenso ist eine Weiterbildung neben dem Beruf in Teilzeit oder in einem Fernkurs möglich. Zusätzlich gibt es viele mehrwöchige oder mehrmonatige Kurse privater Anbieter, in denen man BWL-Grundkenntnisse erwerben kann.

  3. Die Republik Moldau ein Jahr nach dem Wahlsieg der Kommunisten

    OpenAIRE

    Buzogány, Aron

    2002-01-01

    Analyse der politischen, sozialen und ökonomischen Ereignisse in der Republik Moldau, welche nach dem Wahlsieg der Kommunistischen Partei im Jahr 2001 stattgefunden haben. Der Beitrag untersucht Bereiche wie das politische Institutionengefüge, die administrativen Reformen, die Freiheit der Medien, die Wirtschaftsentwicklung sowie die Entwicklung der Beziehungen zwischen der territorialen Autonomie in Gagauzien und der sezessionistischen Quasi-Republik Transnistrien und der Zentralregierung in...

  4. Der Kalte Krieg in der Peripherie Griechische Physiker und Atomenergie nach dem Zweiten Weltkrieg

    Science.gov (United States)

    Vlahakis, George N.

    Die vorliegende Arbeit analysiert Ansichten griechischer Physiker zur Atomenergie und deren mögliche Anwendung nach dem Zweiten Weltkrieg, insbesondere während des Kalten Kriegs. Einerseits werden Ansichten von Physik- Professoren griechischer Universitäten präsentiert - beispielsweise von Dimitrios Hondros, der Student von Arnold Sommerfeld und Mitarbeiter von Peter Debye in München war, und andererseits wird die Politik der griechischen Regierung für die Etablierung eines Forschungsinstitutes diskutiert, das der Entwicklung der Atomenergie dienen sollte; ebenfalls wird eine öffentliche Meinungsumfrage zu diesen Thema, die in den Tageszeitungen der damaligen Zeit präsentiert wurde, diskutiert.

  5. Pandektenvorlesung nach Puchta. Ein Kollegheft aus dem Wintersemester 1859/60 [book review

    OpenAIRE

    Lloredo Alix, Luis

    2010-01-01

    Este artículo reseña: Rudolf von JHERING, Pandektenvorlesung nach Puchta. Ein Kollegheft aus dem Wintersemester 1859/1860, hrsg. und kommentiert von Christian Jáde, Wallstein Verlag, Gottingen, 2008,478 p. La ciencia jurídica alemana del siglo XIX se cuenta entre las épocas más fecundas para el pensamiento jurídico, sobre todo si entendemos éste en un sentido lato. Hoy en día, la especialización académica ha conducido a una autonomía total de la filosofía del Derecho como disciplina cientí...

  6. Konzept einer bionischen E/E-Architektur für Fahrzeuge nach dem Vorbild des menschlichen Körpers

    OpenAIRE

    Adam, Daniel

    2016-01-01

    Die Arbeit präsentiert einen bionischen Entwurf für eine automotive E/E-Architektur nach dem Vorbild des menschlichen Körpers. Der Kerngedanke dabei ist die aktuell vorherschende Komplexität zu reduzieren und gleichzeitig den zukünftigen Anforderungen, vor allem in Verbindung mit der Digitalisierung (Internet of Things, Cyber Physical Systems), zu genügen. Dazu wurde der Aufbau und die Funktionsweise des menschlichen Körpers analysiert und daraus Entwurfsregeln abgeleitet. Aus diesen Entwurfs...

  7. Congenital malformations and infant mortality from the Chernobyl reactor accident; Angeborene Fehlbildungen und Saeuglingssterblichkeit nach dem Reaktorunfall in Tschernobyl

    Energy Technology Data Exchange (ETDEWEB)

    Schoetzau, A.; Santen, F. van; Irl, C.; Grosche, B.

    1994-12-01

    The health impact of radiological contamination in Bavaria from the Chernobyl accident was evaluated. According to caesium 137 levels in soil samples, Bavaria was subdivided in a higher contaminated region (Southern Bavaria) and a lower contaminated region (Northern Bavaria). Indicators for health effects were congenital malformations, perinatal mortality, and infant mortality. Definition of the study periods accounted for the temporal relationship between conception as well as organogenesis and the time of highest exposure to radioactivity during the first weeks of May 1986. Statistical analysis was based on a combined spatial and temporal comparison. The results of the study do not show a significant increase in any of the outcome variables. Consequently, this study provides no evidence that radiation from Chernobyl caused a rise in the birth prevalence of congenital malformations or perinatal and infant mortality in the Bavarian population. (orig.) [Deutsch] Der vorliegende Bericht beschaeftigt sich mit den Folgen der Strahlenexposition in Bayern nach dem Reaktorunfall in Tschernobyl. Es wurde der Frage nachgegangen, ob eine Zunahme negativer gesundheitlicher Wirkungen in hoeher exponierten Bevoelkerungsgruppen im Vergleich zu niedriger exponierten feststellbar war. Der Expositionsstatus wurde nach der Bodenkontamination des Wohnortes bestimmt. Entsprechend der unterschiedlichen Hoehe des Radiocaesium-Gehaltes in Bodenproben wurde die Bevoelkerung der drei suedlichen bayerischen Regierungsbezirke `Oberbayern`, `Niederbayern` und `Schwaben` (Suedbayern) als hoeher und die Bevoelkerung der vier noerdlichen Regierungsbezirke `Oberpfalz`, `Oberfanken`, `Mittelfranken` und `Unterfranken` (Nordbayern) als niedriger exponiert definiert. Als Indikatoren fuer gesundheitliche Wirkungen wurden Veraenderungen der Geburtspraevalenz von Kindern mit ausgewaehlten angeborenen Fehlbildungen sowie Veraenderungen in den Raten der perinatalen Mortalitaet und der Gesamtsterblichkeit

  8. Die (Re-)Integration Kubas in Lateinamerika? Probleme der politischen und ökonomischen Anpassung nach dem Umbruch der Jahre 1989/90

    OpenAIRE

    Heldmann, Jörg

    2004-01-01

    Kuba war lange Zeit in vieler Hinsicht ein ?Schlüsselstaat? für Lateinamerika und die Karibik. Dies begann mit der Entdeckung durch Columbus und setzte sich mit der spanischen Kolonisierung, dem Sklavenhandel, sehr inegalitären Sozialstrukturen, sehr instabilen politischen Verhältnissen nach der Unabhängigkeit und, in besonderem Maße, durch das Abhängigkeits- und Spannungsverhältnis zu den nahe gelegenen USA fort. Die kub...

  9. Mechanical-biological waste conditioning with controlled venting - the Meisenheim mechanical-biological waste conditioning plant; Mechanisch-biologische Restabfallbehandlung nach dem Kaminzugverfahren - MBRA Meisenheim

    Energy Technology Data Exchange (ETDEWEB)

    Hangen, H.O. [Abfallwirtschaftsbetrieb Landkreis Bad Kreuznach, Bad Kreuznach (Germany)

    1998-12-31

    The decision of the rural district of Bad Kreuznach to propose creating facilities for mechanical-biological waste conditioning at the new northern Meisenheim landfill was consistent and correct. It will ensure that the material deposited at this new, state-of-the-art landfill is organically `lean` and can be deposited with a high density. Preliminary sifting of the material prior to depositing safeguards that no improper components are inadvertently included. Three years of operation warrant the statement that waste components that cannot be appropriately biologically conditioned should be eliminated prior to rotting. (orig.) [Deutsch] Die Entscheidung des Landkreises Bad Kreuznach, der neu eingerichteten Norddeponie Meisenheim eine MBRA vorzuschlaten, war auf jeden Fall konsequent und richtig. Es ist damit sicher gestellt, dass in diesem neuen nach dem Stand der Technik eingerichteten Deponiebereich von Anfang an ein Material eingelagert wird, das `organisch abgemagert` ist und mit hoher Einbaudichte eingebaut werden kann. Die Sichtung des gesamten Deponie-Inputs in der Vorsortierhalle gibt ein Stueck Sicherheit, dass keine nicht zugelassenen Stoffe verdeckt dem Ablagerungsbereich der Deponie zugefuehrt werden. Nach mehr als 3 Jahren Betriebszeit kann festgestellt werden, dass biologisch nicht sinnvoll behandelbare Abfallbestandteile vor dem Rotteprozess abgetrennt werden sollten. (orig.)

  10. Massenmedien und Versöhnung: Die Berichterstattung über den deutsch-französischen Friedensprozeß nach dem 2. Weltkrieg

    Directory of Open Access Journals (Sweden)

    Susanne Jaeger

    2003-10-01

    Full Text Available Der vorliegende Beitrag beinhaltet die ersten Ergebnisse einer Langzeitstudie, bei der flächendeckend die deutsche Nachkriegsberichterstattung über Frankreich von 1946 bis 1970 inhaltsanalytisch ausgewertet wurde. Die Studie stützt sich dabei auf das Modell der Nachrichtenfaktoren von Johan Galtung, welche nach seiner Ansicht die Auswahl der Themen bestimmen, die zu einer Nachricht werden. Genau in diesen Selektionsroutinen liegt jedoch die implizite Gefahr, Konflikte zu vertiefen statt sie einzudämmen bzw. durch ein breites Verständnis der Hintergründe gewaltfrei bearbeitbar zu machen. Für die Zeit nach einem Krieg könnten sie Hindernisse auf dem Weg zur Annäherung und Aussöhnung ehemaliger Gegner darstellen. Wie jedoch sieht die Berichterstattung nach dem Krieg tatsächlich aus? Zeigen Massenmedien Bereitschaft zu einer veränderten Berichterstattung? Der Fall der französisch-deutschen Aussöhnung, welcher als Beispiel für einen gelungenen Aussöhnungsprozess gelten kann, belegt, dass Friedensprozesse von den Medien durchaus adäquat begleitet werden können: Z.B. ist der Anteil "positiver" Themen bzw. Berichterstattung konsistent höher als der "negativer", und der Anteil von Non-Elite-Themen steigt an und kündet von Interesse an französischer Lebensart und Kultur. Die Ergebnisse zeigen, dass Negativismus in den Medien kein Naturgesetz ist, sondern überwunden werden kann, wenn Frieden und Versöhnung auf der Tagesordnung stehen.

  11. Klinische Ergebnisse nach stereotaktischer Präzisionsbestrahlung großer uvealer Melanome mit dem Gamma-Knife

    OpenAIRE

    Schonenbach, Sabine

    2006-01-01

    Von Juni 1997 bis April 2001 wurden 97 Patienten, die an einem unilateralen uvealen Melanom litten, mit dem Gamma-Knife radiochirurgisch behandelt. Die Melanome aller 97 Patienten waren aufgrund der Lokalisation oder der Größe für eine Therapie mit Ruthenium-Applikatoren nicht geeignet. Alle 97 Patienten, die sich der Therapie mit dem Gamma-Knife unterzogen, wurden in eine engmaschige Nachsorge aufgenommen. Bei der Nachsorge wurden in regelmäßigen Abständen klinische, echographische und n...

  12. Die Jagd nach dem Allerkleinsten

    CERN Multimedia

    Wolter, Uwe

    2006-01-01

    Only with probes and telescopes scientists do not explore the universe. To understand the processes in the cosmos, researchers feign Big Bang in gigantic devices and look with extremely sensitive detectors for the most elementary particles (1 page)

  13. Cancer incidence in children after the Chernobyl reactor accident. Report prepared within the framework of the radiobiological environmental monitoring programme in Bavaria; Inzidenz boesartiger Neubildungen bei Kindern nach dem Reaktorunfall von Tschernobyl. Bericht im Rahmen des Strahlenbiologischen Umweltmonitorings Bayern

    Energy Technology Data Exchange (ETDEWEB)

    Irl, C.; Schoetzau, A.; Santen, F. von; Grosche, B.

    1996-04-01

    The impact of the radiological contamination in Bavaria after the Chernobyl accident on childhood cancer was evaluated. According to caesium 137 in soil samples, Bavaria was subdivided in four regions with different contamination levels. The malignancies selected for analysis were: Leukaemia and non-Hodgkin lymphoma, tumors orginating in the embryonic period, tumors of the central nervous system and thyroid cancer. The temporal changes in the incidence of the selected tumors in the four regions were compared with the temporal changes in the rest of the Federal Republic of Germany (old laender). In addition, it was investigated, whether the tumor incidence after the Chernobyl accident showed a trend in connection with the degree of contamination. The results of the study neither show significant differences in the tumor incidence of regions with different contamination levels, nor are they indicative of a trend in the incidence in relation with contamination. Consequently, this study provides no evidence that the Chernobyl accident caused an increase in childhood cancer. Considering the latency periods of malignant diseases, however, a final evaluation is not yet possible. (orig.) [Deutsch] Der vorliegende Bericht untersucht die Frage einer nach dem Reaktorunfall in Tschernobyl erhoehten Inzidenz boesartiger Neubildungen bei Kindern in Bayern, demjenigen unter den alten Bundeslaendern, das durch den Unfall am staerksten kontaminiert wurde. Von den boesartigen Neubildungen wurden solche ausgewaehlt, bei denen ionisierende Strahlung als ein aetiologisch relevanter Faktor in Frage kommt. Im einzelnen handelt es sich um die Gruppe der Leukaemien und Non-Hodgkin-Lymphome, Tumoren mit Ursprung in der Embryonalzeit (maligne Keimzelltumoren, Nephroblastom, Neuroblastom, Retinoblastom), Tumoren des Zentrahnervensystems und Schilddruesenkarzinome. Die Analyse besteht einerseits in einem Vergleich zwischen unterschiedlich hohen exponierten Bevoelkerungsgruppen Bayerns mit der

  14. Osteopathien nach Lungentransplantation

    Directory of Open Access Journals (Sweden)

    Aringer M

    1999-01-01

    Full Text Available Mit der immer besser werdenden Lebenserwartung von Patienten nach Lungentransplantation gewinnen knöcherne Komplikationen an Bedeutung. Parallel zu anderen Gruppen haben wir die Häufigkeit von Frakturen, die Knochendichte und Knochenstoffwechselparameter von in Wien transplantierten Patienten untersucht. Aus dieser Querschnittsstudie geht eine extrem hohe Osteopathie-Prävalenz hervor, viele Patienten weisen einen Vitamin D-Mangel auf. Der Knochenstoffwechsel ist gesteigert, teilweise im Zusammenhang mit einem sekundären Hyperparathyreoidismus. Wir diskutieren hier unsere Resultate vor dem Hintergrund der anderen publizierten Untersuchungen.

  15. Compliance-Prüfung nach dem IDW EPS 980: Pflicht oder Kür für den Aufsichtsrat?

    OpenAIRE

    Grüninger, Stephan

    2010-01-01

    Compliance ist originär Managementaufgabe und liegt damit in der Verantwortung des Vorstandes bzw. der Geschäftsführung. Naheliegend ist, dass dem Aufsichtsrat als Überwachungsorgan eine Rolle im Rahmen der Compliance-Prüfung zukommt. Anlässlich der Veröffentlichung des Entwurfs für einen Prüfungsstandard - Grundsätze ordnungsgemäßer Prüfung von Compliance Management Systemen (IDW EPS 980) - des Instituts der Wirtschaftsprüfer sollen in diesem Beitrag drei Aspekte dieses Themas erörtert werde...

  16. Energy recovery from green wood and waste wood according to the new EEG; Energetische Verwertung von holzigen Gruenabfaellen und Resthoelzern nach dem neuen EEG

    Energy Technology Data Exchange (ETDEWEB)

    Strohmeyer, Anemon [Bundesverband der Altholzaufbereiter und -verwerter e.V., Berlin (Germany)

    2012-11-01

    The EEG has decisive influence on the further development of biomass power plants. Changes in the markets for ligneous green waste and waste wood caused a reconsideration and adaptation of specifications in the EEG 2012. It is assumed that construction of new biomass power plants will slow down with the new regulations and the pressure on utilisation of ligneous biomass will not increase further. Energy recovery from green waste and waste wood is already under strong competition from materials recovery processes and from conventional power plants interested in cocombustion of CO{sub 2}-neutral waste wood. (orig.) [German] Das EEG hat entscheidenden Einfluss auf die Entwicklung des Anlagenparks der Biomassekraftwerke. Die Veraenderung der Maerkte fuer holzartige Gruenabfaelle und Resthoelzer fuehrte dazu, dass die Anreize und Impulse des EEG ueberprueft und angepasst werden mussten. Das EEG 2012 nimmt insoweit wichtige Systemkorrekturen vor. Unter der Geltung des neuen EEG ist daher davon auszugehen, dass der Anlagenpark langsamer wachsen und der Nutzungsdruck auf holzartige Biomasse nicht weiter ansteigen wird. Denn die energetische Verwertung von holzartigen Gruenabfaellen und Resthoelzern steht bereits heute unter erheblichem Konkurrenzdruck durch die stoffliche Verwertung der geeigneten Qualitaeten und durch konventionelle Kraftwerke, die an dem CO{sub 2}-neutral verbrennenden Wertstoff interessiert sind. (orig.)

  17. Successful face end position according to optimised support concept at the Walsum colliery; Erfolgreiche Strebendstellung nach optimiertem Ausbaukonzept auf dem Bergwerk Walsum

    Energy Technology Data Exchange (ETDEWEB)

    Maucher, B.; Rosinski, D. [Bergbau AG Niederrhein, Duisburg (Germany). Bergwerk Walsum; Mogk, E.; Kulassek, M. [Bergamt Moers (Germany)

    1999-08-30

    For the first time in the German coal mining industry a face end position at the Walsum colliery was supported by the cable bolting method in 1997. The advantages of this system compared to the conventional support method are a prop-free exit track, a high degree of safety and improved ergonomics. The experience acquired during initial use has been incorporated in the support concept of the subsequent panel. In the final position of panel P-91 the bolted area was enlarged, the number and length of the bolts optimised and control of the roof improved by various additional measures. The exit track supported by the cable bolting method permitted the use of a mobile salvaging machine to recover conveyors and shield supports. Recovery performances of up to ten shields per shift or 1.43 shields per man shift were achieved. All work was completed without notifiable accidents. (orig.) [German] Erstmalig im deutschen Steinkohlenbergbau wurde im Jahr 1997 eine Strebendstellung auf dem Bergwerk Walsum in Seilankertechnik ausgebaut. Als Vorteile gegenueber der konventionellen Ausbautechnik bietet diese Technik eine stempelfreie Ausfahrgasse, ein hohes Mass an Arbeitssicherheit und eine verbesserte Ergonomie. Die beim Ersteinsatz gewonnenen Erfahrungen sind in das Ausbaukonzept der Nachfolgebauhoehe eingeflossen. In der Endstellung der Bauhoehe P-91 wurden die geankerte Flaeche vergroessert, die Anzahl und Laenge der Anker optimiert und durch verschiedene zusaetzliche Massnahmen die Beherrschung des Hangenden verbessert. Die in Seilankertechnik ausgebaute Ausfahrgasse erlaubte den Einsatz eines mobilen Raubgeraets zur Wiedergewinnung von Foerderer und Schildausbau. Auf diese Weise wurden Wiedergewinnungsleistungen von bis zu zehn Schilden pro Schicht beziehungsweise 1,43 Schilden/MS erreicht. Alle Arbeiten konnten ohne meldepflichtige Unfaelle abgeschlossen werden. (orig.)

  18. Polilingvizmas kaip „grįžimas namõ“: tarp Babilono katastrofos ir Jeruzalės Sekminių stebuklo. Vlado Braziūno poezijos at(sivėrimai | Der Polylinguismus als „Rückkehr nach Hause“: zwischen der babylonischen Katastrophe und dem Pfingstwunder von Jerusalem

    Directory of Open Access Journals (Sweden)

    Skirmantas Valentas

    2006-01-01

    Full Text Available In diesem Beitrag wird ein Versuch unternommen, die Widerspiegelung von zwei philologisch wichtigen Episoden der Heiligen Schrift in der modernen Poesie zu vermitteln. Es geht um die Erzählung von der babylonischen Sprachenverwirrung im Buch der Anfänge und um das in den Apostelgeschichten erwähnte Pfingstwunder, die beide unter einen Begriff Polylinguismus fallen.Der Polylinguismus in der Poesie ist als eine syntagmatische Mehrsprachigkeit, anders gesagt, als eine implizite Benennung desgleichen Denotats in einigen Sprachen, zu betrachten.Der verallgemeinernde Begriff „Rückkehr nach Hause“ lässt zwei Begriffe in Verbindung setzen: die sich nach der babylonischen Katastrophe etablierte Mehrsprachigkeit und das Pfingstwunder als eine Möglichkeit die verwirrten Sprachen wieder zu einem Harmonischen zusammenzufügen.Da die Poesie als ein Grammatik modellierender Text vorliegt, ist eine Idee hervorzuheben, dass neben einer üblichen Sprache in der Poesie eine andere Sprache mit völlig anderen Regeln aufgedeckt werden muss.Als eines der Grundmerkmale der üblichen Sprache ist ein in ihr enthaltenes Oppositionsystem zu betrachten. Als Grundmerkmal einer anderen Sprache gilt dagegen das Schwinden der grundlegenden Oppositionen, das einen endlosen und periodischen Text schafft.Der Polylinguismus der Poesie wird in den linguistischen Geschichten am deutlichsten sichtbar. Der Polylinguismus in der Poesie, der dem Simultandolmetschen nahsteht, führt uns auf das Pfingstwunder zurück.

  19. Philosophische Begleitung für Suche nach «Gottesteilchen»

    CERN Multimedia

    2007-01-01

    Berlin (AP) Der designierte Generaldirektor des europäischen Zentrums für Teilchenphysik CERN in Genf, Rolf-Dieter Heuer, will die Suche nach dem mysteriösen Higgs-Teilchen philosophisch begleiten lassen.

  20. Ein Jahr nach stationärer Rehabilitation - was blieb?

    Directory of Open Access Journals (Sweden)

    Laimer H

    2004-01-01

    Full Text Available Im Anschluß an die Erstmanifestation einer koronaren Herzkrankheit sind umfassende sekundärpräventive und rehabilitative Maßnahmen erforderlich, um den weiteren Verlauf der Krankheit zu optimieren. Ein intensiver erster Einsatz der Rehabilitation erfolgt unmittelbar nach dem Krankenhausaufenthalt in der Phase 2, die in Österreich überwiegend stationär in einem Rehabilitationszentrum durchgeführt wird. Im Rahmen eines Anschlußheilverfahrens werden die Risikofaktoren Lipide, Gewicht und Rauchverhalten sowie die medikamentöse Einstellung erfolgreich beeinflußt. Diese günstigen Effekte zeigen sich jedoch nach einem Jahr teilweise wieder abgeschwächt, wobei vor allem die neuerliche Gewichtszunahme der Patienten imponiert. Das Ausmaß der Verschlechterung nach einem Jahr ist jedoch bei weitem nicht so ausgeprägt wie bei den Daten von 5.556 Patienten aus 15 europäischen Ländern in der EUROASPIRE-II-Studie. Zur Optimierung des Langzeiterfolges ist eine Fortführung rehabilitativer Maßnahmen auch nach der Anschlußheilbehandlung erforderlich. Ein stationäres Wiederholungsheilverfahren ein Jahr nach dem Akutereignis führt zu einer weiteren Verbesserung des Risikoprofils, kann jedoch aus Kostengründen nicht generell empfohlen werden. Als Alternative bietet sich eine der stationären Phase-2-Rehabilitation angeschlossene ambulante Phase-3-Rehabilitation an.

  1. Socio-political Turmoil in Mali: The Public Debate Following the Coup d’État on 22 March 2012 Sozio-politische Turbulenzen in Mali: Die öffentliche Debatte nach dem Staatsstreich vom 22. März 2012

    Directory of Open Access Journals (Sweden)

    Sten Hagberg

    2012-01-01

    Full Text Available During the night between 21 and 22 March 2012, a group of young military officers overthrew Mali’s president, Amadou Toumani Touré. The group justified the coup by citing the inability of the regime to both deal with the crisis in the North and provide the army with the appropriate material and manpower to defend the national territory. The coup plunged Mali into violence, and caused a de facto partition of the country. The socio-political turmoil pitting different political and armed factions against each other has continued unabated and has been accompanied by intense mass media debates. In this report we focus on the Malian public debate. By looking at the political class, the international community, and the partition of the country, we analyse representations and stereotypes prevailing in this debate.In der Nacht vom 21. zum 22. März 2012 wurde der Präsident Malis, Amadou Toumani Touré, durch eine Gruppe junger Offiziere gestürzt. Die Gruppe rechtfertigte den Putsch, indem sie auf die Unfähigkeit des Regimes verwies, die Krise im Norden zu bewältigen und die Armee personell und materiell angemessen auszustatten, um die Grenzen das Landes verteidigen zu können. Der Staatsstreich stürzte Mali in eine gewaltsame Auseinandersetzung und führte zu einer faktischen Teilung des Landes. Die sozio-politischen Turbulenzen, in denen verschiedene politische und bewaffnete Gruppierungen gegeneinander antraten, haben seither unvermindert angehalten und wurden von intensiven Debatten in den Massenmedien begleitet. Der vorliegende Bericht konzentriert sich auf die öffentliche Debatte in Mali. Vor dem Hintergrund der politischen Entwicklung des Landes, der Positionen der internationalen Gemeinschaft und der Ursachen für die Teilung des Landes stellen die Autoren die Darstellungsweisen und Stereotypen dar, die in dieser Debatte Verwendung finden.

  2. Transplantationsosteopathie: Knochenstoffwechsel nach Nierentransplantation

    OpenAIRE

    Kovarik J

    2001-01-01

    Die Osteopathie nach Nierentransplantation ist eine klinische Entität, als deren wesentlichste ätiologische Faktoren einerseits die Persistenz des sekundären Hyperparathyreoidismus, andererseits die Immunsuppression verantwortlich gemacht werden. Nierentransplantierte Patienten zeichnen sich außerdem dadurch aus, daß ihre Knochenerkrankung auf der Basis einer präexistenten renalen Osteopathie entsteht. Daten über die renale Posttransplantationsosteopathie sind in der Literatur dürftig und zum...

  3. Transplantationsosteopathie: Knochenstoffwechsel nach Nierentransplantation

    Directory of Open Access Journals (Sweden)

    Kovarik J

    2001-01-01

    Full Text Available Die Osteopathie nach Nierentransplantation ist eine klinische Entität, als deren wesentlichste ätiologische Faktoren einerseits die Persistenz des sekundären Hyperparathyreoidismus, andererseits die Immunsuppression verantwortlich gemacht werden. Nierentransplantierte Patienten zeichnen sich außerdem dadurch aus, daß ihre Knochenerkrankung auf der Basis einer präexistenten renalen Osteopathie entsteht. Daten über die renale Posttransplantationsosteopathie sind in der Literatur dürftig und zum Teil kontrovers abgehandelt. Grund dafür sind inhomogene Patientengruppen, die Verwendung unterschiedlicher immunsuppressiver Protokolle, unterschiedliche Diagnosewege und Diagnosekriterien sowie das Fehlen prospektiver Untersuchungen.

  4. Epileptische Anfälle nach zerebrovaskulären Ereignissen - Erste Auswertungen der Wiener Schlaganfalldatenbank

    Directory of Open Access Journals (Sweden)

    Glawar B

    2002-01-01

    Full Text Available Die Inzidenz isolierter epileptischer Anfälle nach Schlaganfällen wird in der Literatur zwischen 4 und 15 % angegeben. Die Wahrscheinlichkeit, eine Epilepsie nach einem zerebrovaskulären Ereignis zu entwickeln, liegt nach bisherigen Erkenntnissen zwischen 4 und 9 %. In einer prospektiven, multizentrischen Datenerhebung im Rahmen der Wiener Schlaganfalldatenbank werden seit Oktober 1998 Patienten mit der Diagnose Schlaganfall (nach der WHO-Definition und TIA, die innerhalb von 72 Stunden nach dem Ereignis zur Aufnahme an eine neurologische Abteilung kommen, erfaßt. Unter anderem werden auch Auftreten und Art von epileptischen Anfällen nach dem Ereignis beziehungsweise die Entwicklung einer vaskulären Epilepsie erfaßt. Für die vorliegende Fragestellung wurden die Daten von 1969 Patienten inklusive einer Dreimonatskontrolle ausgewertet. 82 dieser 1969 Patienten (= 4,2 % erlitten einen oder mehrere epileptische Anfälle nach dem Ereignis. Bei 55 Patienten (= 67 % trat der erste Anfall innerhalb von 24 Stunden, entsprechend einem Immediatanfall, auf. 22 Patienten (= 27 % hatten den ersten Anfall innerhalb der ersten 14 Tage, und bei 5 Personen (= 6 % wurde der erste Anfall erst zu einem späteren Zeitpunkt dokumentiert. Bei 67 % (n = 55 traten fokale Anfälle mit/ohne sekundäre Generalisierung auf, und bei ca. 33 % (n = 27 kam es zu phänomenologisch primär generalisierten Anfällen. In einer multivariaten Analyse zeigt sich, daß vor allem Patienten mit initial schwerer Behinderung nach dem NIH-Stroke Score ein höheres Risiko haben, epileptische Anfälle zu entwickeln. Bei 12 Patienten trat mehr als ein epileptischer Anfall auf, dies entspricht einer Inzidenz von 0,6 % für die Entwicklung einer vaskulären Epilepsie. In einem Beobachtungszeitraum von 3 Monaten sind noch nicht alle Patienten, die epileptische Anfälle entwickeln, erfaßt. Längere Beobachtungszeiträume und Kontrollen nach einem und nach zwei Jahren werden ausf

  5. Ein Universum nach Maß. Bedingungen unserer Existenz.

    Science.gov (United States)

    Gribbin, J.; Rees, M.

    This book is a German translation, by A. Ehlers, of the English original "Cosmic coincidences. Dark matter, mankind, and anthropic cosmology", published in 1989 (see 52.003.043). Contents: I. Zufälle im Weltall. 1. Wie außergewöhnlich ist unsere Welt? 2. Himmelskunde. 3. Zwei Arten dunkler Materie. II. Der Stoff aus dem die Welt besteht. 4. Der Teilchenzoo. 5. Halomaterie. 6. Der Stoff, aus dem die Kerne sind. 7. Kosmische Strings. 8. Die Schwerkraft als Fernrohr. 9. Der Lyman-Wald: Entstehung und Entwickluing von Galaxien. III. Ein Universum nach Maß? 10. Dem Menschen auf den Leib geschneidert? 11. Ein Weltall von der Stange?

  6. Philosophische Begleitung für Suche nach »Gottesteilchen«

    CERN Multimedia

    2007-01-01

    Berlin_Der designierte Generaldirektor des europäischen Zentrums für Teilchenphysik CERN in Genf, Rolf-Dieter Heuer, will die Suche nach dem mysteriösen Higgs-Teilchen philosophisch begleiten lassen. Der Dialog zwischen Naturwissenschaftlern und Philosophen sei wichtig, sagte der Hamburger Experimentalphysiker am Montag im Deutschlandradio Kultur.

  7. Gesund aufwachsen – Welche Bedeutung kommt dem sozialen Status zu?

    OpenAIRE

    Lampert, Thomas; Kuntz, Benjamin

    2015-01-01

    Deutschland gehört zu den reichsten Ländern der Welt und verfügt über ein gut ausgebautes Sozialversicherungssystem. Dennoch wachsen auch hierzulande nicht alle Kinder und Jugendlichen unter den gleichen Lebensbedingungen auf. Die Ausgabe 1/2015 der Reihe GBE kompakt geht der Frage nach, welche Bedeutung dem sozialen Status beim gesunden Aufwachsen zukommt. Die Autoren untersuchen, ob sich soziale Ungleichheit im Gesundheitszustand, dem Gesundheitsverhalten und der Gesundheitsversorgung von K...

  8. Digital pressure ulcer after pulse oximetry [Digitales Druckulkus nach Pulsoxymetrie

    Directory of Open Access Journals (Sweden)

    Zeplin, Philip H.

    2013-06-01

    Full Text Available [english] In emergency medical service, in intensive care unit and anaesthesia oxygenation is monitored with pulse oximetry apparatus. Pulse oximetry probe is usually attached to the finger, toe or earlobe. To the best of our knowledge this is the first case report describing the occurrence of a pressure ulcer after finger pulse oximetry measurement.[german] Sowohl in der Notfall- und Intensivmedizin als auch in der Anästhesie wird die Sauerstoffsättigung des Blutes mit Pulsoxymetern ermittelt. Diese Pulsoxymeter werden üblicherweise an den Fingern, den Zehen oder dem Ohrläppchen angebracht. Wir beschreiben einen Fall, bei dem es nach Anlage eines Fingerclip-Pulsoxymeters zur Ausbildung eines operationsbedürftigen Druckulkus kam.

  9. Sacherschliessung nach RDA

    Directory of Open Access Journals (Sweden)

    Hans Schürmann

    2015-05-01

    Full Text Available Die Resource Description and Access (RDA wird für den deutschsprachigen Raum das neue Regelwerk für die bibliothekarische Erschliessung der Bestände. In diesem Regelwerk wird auch die Sacherschliessung neu geregelt. Zurzeit sind diese Seiten noch leer. Doch wie soll ein Regelwerk für die Sacherschliessung aussehen? Kriterien für eine Regelung fehlen, zu stark hat sich das Umfeld der Inhaltserschliessung in den letzten Jahren geändert. Auch von der Schlagworttheorie her sind noch keine Hinweise in Sicht. Deshalb wird in verschiedenen Gremien intensiv diskutiert, wie eine zukunftsfähige Sacherschliessung aussehen könnte. In welchem Rahmen bewegt sich die Diskussion und woran soll sich die Regelwerksentwicklung für den Sachkatalog orientieren? Der Beitrag erwägt zwischen der Sachkataloggeschichte einerseits und dem modernen Datenmanagement im Netz andererseits die Bedeutung und die Rolle eines Sacherschliessungsregelwerks. Resource Description and Access (RDA will be the new standard for descriptive cataloguing in the German-speaking countries. Under RDA, subject indexing will also be redefined, although, at present, the relevant pages remain blank. This article ponders the question what these new standards could look like. As yet no clear criteria have emerged – the field of subject indexing has undergone too much change in recent years for that. Nor does the theory appear to offer any answers at the moment. There is therefore intensive and ongoing debate in the various forums. What is the framework of these discussions and what are the key criteria? The article summarizes them and considers the importance of indexing standards in the light of both the history of indexing and modern data management on the web.

  10. Besonderheiten der ektopen Schwangerschaft nach IVF/ICSI

    Directory of Open Access Journals (Sweden)

    Tews G

    2004-01-01

    Full Text Available Es ist allgemein bekannt, daß die weltweit erste Schwangerschaft nach In-Vitro-Fertilisation (IVF in einer Eileiterschwangerschaft endete [1]. Seit damals wurde in zahlreichen Arbeiten die Problematik der Extrauterinschwangerschaft im Rahmen der Reproduktionsmedizin beschrieben. Die Inzidenz schwankt je nach Arbeit zwischen 2 und 11 %. Teilweise konnte man keine Risikofaktoren entdecken, andere Autoren beschreiben erhöhte Inzidenzen bei kleineren Cavi uteri. Manchmal wurden beschädigte Tuben insbesondere für ektope Schwangerschaften als Risiko erwähnt. Das Ziel einer eigenen Untersuchung und einer Literaturanalyse war, die Inzidenz der ektopen Schwangerschaft, insbesondere der heterotopen Schwangerschaft (gleichzeitig intrauteriner und extrauteriner Sitz und deren Besonderheiten im Rahmen eines IVF/ICSI-Programms herauszuarbeiten. Die Untersuchung von 19 ektopen Schwangerschaften nach IVF aus dem eigenen Klientel und der Vergleich mit der Literatur hat ergeben, daß diese nach reproduktionsmedizinischen Eingriffen gehäuft vorkommen, wobei insbesondere tubare Faktoren mit nachfolgender IVF und weniger ICSI dafür verantwortlich sind. Von besonderer Wichtigkeit ist, daß zwar die Progesteronwerte im Vergleich zu spontan entstandenen Schwangerschaften erhöht sind, nicht jedoch β -hCG-Werte bzw. deren Anstieg. Weiters ist darauf zu achten, daß heterotope Schwangerschaften, also die Kombination von intra- und extrauterinen Graviditäten, ungleich häufiger vorkommen und in die diagnostischen Überlegungen unbedingt miteinbezogen werden müssen. Leider ist die Existenz einer derartigen heterotopen Schwangerschaft mit gleichzeitigem Vorkommen einer Überstimulation vor Eintritt einer Ruptur gelegentlich undiagnostizierbar.

  11. ElevationDEM_DEM1M2005

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area(s): Essex County 2005 1m and Digital Elevation Model (DEM) datasets of various "hydro-treatments": DEM, DEMHF...

  12. ElevationDEM_DEM2M

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area(s): Bennington County 2012 2.0m and Digital Elevation Model (DEM) datasets of various "hydro-treatments": DEM,...

  13. ElevationDEM_DEM1M2009

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area(s): Essex County 2005 1m and Digital Elevation Model (DEM) datasets of various "hydro-treatments": DEM, DEMHF...

  14. ElevationDEM_DEM1M2010

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area(s): Essex County 2005 1m and Digital Elevation Model (DEM) datasets of various "hydro-treatments": DEM, DEMHF...

  15. ElevationDEM_DEM1M2007

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area(s): Essex County 2005 1m and Digital Elevation Model (DEM) datasets of various "hydro-treatments": DEM, DEMHF...

  16. Zuwanderung nach Österreich. Integrationspolitische Herausforderungen

    Directory of Open Access Journals (Sweden)

    Heinz Faßmann

    2016-12-01

    Full Text Available ENGLISH: Since the early 1960ies, Austria has become an immigration country against its will. In the beginning, the migration of Guestworkerswas a flexible supplement of the national labour market. Gradually it developed towards a permanent immigration.With the accession to the European Union Austria became a part of the common European migration era. The immigration fromthird countries lost importance, the immigration from other member states gained. Beside, Austria was always a target countryfor asylum seekers. The structural characteristics of the immigrants as well as the historical context showed some changes. Therefore,the integration processes happened differently. While the integration of the immigrants from other member states –especially from Germany – performed conflict – free and quick, the integration of the guestworkers and their descendants proceededonly stepwise. A similar stepwise and long lasting integration process can be expected for the asylum seekers due totheir qualification and their cultural background. Therefore, the cultural diversity will increase and it is not always an enrichmentonly, but also a reason of conflicts about the valid societal perspectives. DEUTSCH: Österreich hat sich seit den 1960er zu einem Einwanderungsland wider Willen entwickelt. Anfangs war die Zuwanderung vonGastarbeiterInnen eine flexible Ergänzung des nationalen Arbeitsmarktes. Nach und nach entwickelte sich daraus aber eine dauerhafteZuwanderung. Mit dem Beitritt zur Europäischen Union wurde Österreich auch Teil eines Europäischen Wanderungsraums.Die Zuwanderung aus den Drittstaaten verlor an Bedeutung, die Zuwanderung aus anderen Mitgliedstaaten der EuropäischenUnion wurde wichtiger. Daneben war Österreich auch immer wieder Aufnahmeland von Asylwerbern. Die strukturellenMerkmale der Zugewanderten und der zeitliche Kontext der Zuwanderung waren ungleich. Daher verliefen auch die Integrationsprozessesehr unterschiedlich. W

  17. Biologische Augmentation der Sehnenheilung mittels Wachstumsfaktoren nach induzierter Supraspinatussehnenruptur am Rattenmodell

    OpenAIRE

    Reichel, Thomas

    2015-01-01

    Es wurde in-vivo die Wirkung des Wachstumsfaktors G-CSF auf die Supraspinatussehnenheilung im Rattenmodell untersucht. Der Wachstumsfaktor wurde über ein neu entwickeltes Phospholipidgel über 20 Tage kontinuierlich im Bereich der Rekonstruktion freigesetzt. Der Defekt wurde nach dem in unserer Vorstudie entwickelten Modell der chronischen Supraspinatussehnendegeneration zuvor gesetzt. Eine signifikant bessere Zellularitätsvariation, eine bessere Kollagenverteilung sowie ein positiver Trend zu...

  18. Neurorehabilitation und Plastizität nach Schlaganfall

    Directory of Open Access Journals (Sweden)

    Hosp JA

    2010-01-01

    Full Text Available Plastizität ermöglicht es dem zentralen Nervensystem, sich an veränderte äußere Gegebenheiten anzupassen und durch Schädigung entstandene Defizite zu kompensieren. Im Spontanverlauf nach einem Schlaganfall kommt es zu tiefgreifenden Reorganisationsvorgängen, die im Idealfall zu einer deutlichen Reduktion der anfänglichen Behinderung führen können. Neuronale Plastizität kann auch durch bestimmte rehabilitative Trainingsverfahren induziert werden. Der Nachweis plastischer Reorganisationsvorgänge ist bei Menschen nur durch indirekte Methoden möglich. Erst im Tiermodell ist eine Charakterisierung der molekularen, zellulären und physiologischen Grundlagen von Plastizität realisierbar. Eine Einsicht in diese Grundlagen ist auch für die praktische Planung und Durchführung von Rehabilitationsmaßnahmen bei Schlaganfallpatienten essenziell.

  19. Entwicklungsperspektiven von Social Software und dem Web 2.0

    Science.gov (United States)

    Raabe, Alexander

    Der Artikel beschäftigt sich zunächst mit dem derzeitigen und zukünftigen Einsatz von Social Software in Unternehmen. Nach dem großen Erfolg von Social Software im Web beginnen viele Unternehmen eigene Social Software-Initiativen zu entwickeln. Der Artikel zeigt die derzeit wahrgenommenen Einsatzmöglichkeiten von Social Software im Unternehmen auf, erörtert Erfolgsfaktoren für die Einführung und präsentiert mögliche Wege für die Zukunft. Nach der Diskussion des Spezialfalles Social Software in Unternehmen werden anschließend die globalen Trends und Zukunftsperspektiven des Web 2.0 in ihren technischen, wirtschaftlichen und sozialen Dimensionen dargestellt. Wie aus den besprochenen Haupttrends hervorgeht, wird die Masse an digital im Web verfügbaren Informationen stetig weiterwachsen. So stellt sich die Frage, wie es in Zukunft möglich sein wird, die Qualität der Informationssuche und der Wissensgenerierung zu verbessern. Mit dem Einsatz von semantischen Technologien im Web wird hier eine revolutionäre Möglichkeit geboten, Informationen zu filtern und intelligente, gewissermaßen verstehende" Anwendungen zu entwerfen. Auf dem Weg zu einem intelligenten Web werden sich das Semantic Web und Social Software annähern: Anwendungen wie Semantic Wikis, Semantic Weblogs, lightweight Semantic Web-Sprachen wie Microformats oder auch kommerzielle Angebote wie Freebase von Metaweb werden die ersten Vorzeichen einer dritten Generation des Webs sein.

  20. ElevationDEM_DEM1m

    Data.gov (United States)

    Vermont Center for Geographic Information — A "Bare Earth" Digital Elevation Model (DEM) data represents the bare ground surface without any objects like plants and buildings on it, was derived from the best...

  1. Spielräume des sozialen Subjekts: Simon Stone inszeniert Rocco und seine Brüder nach Luchino Visconti

    Directory of Open Access Journals (Sweden)

    Judith Frömmer

    2016-03-01

    Full Text Available In seiner Theater-Adaptation von Luchino Viscontis Film Rocco e i suoi fratelli inszeniert Simon Stone in den Münchner Kammerspielen das Drama einer italienischen Familie als modernes Migrationsdrama. Die Kollision etablierter räumlicher Ordnungen der globalisierten Welt findet ihr ästhetisches Widerlager im theatralischen Spiel der Figuren, das gleichzeitig die Suche nach dem Ort des Theaters performiert.

  2. 3-year midterm results following hydrolyser{sup TM} thrombolysis; Langzeit-Ergebnisse nach Hydrolyser-unterstuetzter Angioplastie - eine prospektive Studie

    Energy Technology Data Exchange (ETDEWEB)

    Beyer-Enke, S.A.; Deichen, J.; Zeitler, E. [Staedtisches Klinikum Nuernberg-Nord (Germany). Inst. fuer Diagnostische und interventionelle Radiologie

    1999-08-01

    Purpose: Data of a three-year follow-up after mechanical thrombolysis with the Hydrolyser catheter were evaluated. Patients have otherwise been treated by local thrombolysis. Method: 35 patients were treated by thrombolysis, balloon angioplasty, aspiration, local thrombolysis, and stent placement, if necessary. Morphological results following Hydrolyser treatment and additional treatment were evaluated. Results: Following Hydrolyser treatment a significant reduction of the degree and length of the occlusion was observed. Primary clinical success was 80%. Patency rate after 3 years was 0.5. 23% of all patients died in the follow-up period. Conclusion: The Hydrolyser treatment is a relevant alternative to local thrombolysis. This method reduces the time of treatment. The authors favor the lateral opening of the catheter to remove mural thrombus. (orig.) [German] Ziel: Auswertung der Nachkontrollen von Patienten, die anstelle einer lokalen Lyse mit dem Hydrolyser {sup trademark} -Thrombektomiekatheter (HT), Ballondilatation (PTA), Aspirationsthrombektomie (PAT) oder Stent behandelt wurden. Methode: 35 Patienten wurden behandelt und ueber drei Jahre nachbeobachtet. Alle Patienten hatten thromotische/thrombembolische Verschluesse der unteren Extremitaet. Die Laesionen wurden alle mit dem Hydrolyser {sup trademark} -Katheter behandelt. Abhaengig von der Art der Laesion wurden die unterschiedlichen Zusatzverfahren eingesetzt. Das morphologische Resultat wurde sowohl nach dem Einsatz des Hydrolysers {sup trademark} als auch nach der sekundaeren Therapie beurteilt. Ergebnis: Nach Verwendung des Hydrolysers konnte in 21 Faellen eine weitgehende Rekanalisation erreicht werden. Nach sekundaerer Angioplastie wurde in 31 Faellen ein zufrieden-stellendes Resultat (keine relevante Reststenose) erzielt. Die primaere klinische Erfolgsrate lag bei 28/35 (80%). Die Offenheitsrate nach drei Jahren betrug 0,5. 8 Patienten (23%) waren verstorben. Schlussfolgerung: Das System verkuerzt

  3. Von Kalifornien nach Taxham / Katri Soe

    Index Scriptorium Estoniae

    Soe, Katri, 1971-

    2005-01-01

    Neljas osa magistritööst "Von Kalifornien nach Taxham: Formen und Strukturen der Kommunikation in Peter Handkes Romanen "Der kurze Brief zum langen Abschied" und "In einer dunklen Nacht ging ich aus meinem stillen Haus"" (Tartu, 2000. Juhendaja: Claus Sommerhage)

  4. NTHMP DEM Project

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) to support individual coastal States as part of the...

  5. kawaihae_dem.grd

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NGDC builds and distributes high-resolution, coastal digital elevation models (DEMs) that integrate ocean bathymetry and land topography to support NOAA's mission to...

  6. NOAA VDatum DEM Project

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions in the Gulf of Mexico....

  7. Ein Arachniden-Opisthosoma aus dem Obervisé von NW-Sachsen

    Directory of Open Access Journals (Sweden)

    E. Kahlert

    1998-01-01

    Full Text Available Ein aus dem Unterkarbon von NW-Sachsen stammendes Opisthosoma wird als Cryptomartus sp. beschrieben. Damit liegt stratigraphisch nach bisherigen Erkenntnissen der älteste Fund dieses Genus vor. An Arachnid-Opisthosoma from the Lower Carboniferous of North Western Saxony. An opisthosoma of Cryptomartus sp. is described from the Lower Carboniferous of North Western Saxony. That this my knowledge is the oldest record for the genus. doi:10.1002/mmng.19980010109

  8. Todesfallanalyse 2 Jahre nach invasiven kardiologischen Eingriffen in Innsbruck im Jahr 1998 mit Hilfe eines "Record-linkage"-Verfahrens zur "Statistik Österreich"

    Directory of Open Access Journals (Sweden)

    Mühlberger V

    2001-01-01

    Full Text Available Kontrolle, Sicherung und Management von Qualität im Herzkatheterlabor gewinnen aufgrund der zunehmenden Verbreitung von Herzkatheteruntersuchungen immer mehr an Bedeutung.Das Messen von Zahlen über Untersuchungshäufigkeiten und Komplikationen ist nach wie vor Grundlage eines guten Qualitätsmanagements und vor allem die unmittelbare und mittelfristige Mortalität ist und bleibt einer der härtesten Parameter in der Medizin. Wir haben uns mit der zugrundeliegenden Technik der Datenerhebung im Herzkatheterlabor beschäftigt und in Innsbruck für das Jahr 1998 retrospektiv noch einmal die Zahlen überprüft. Zum Vergleich gelangten einerseits die eigenen damaligen Daten, sowie jene des sogenannten MEDAS-Dokumentationssystems innerhalb der Krankenanstalt und andererseits jene der "Statistik Österreich" als Bundesanstalt öffentlichen Rechts. Verglichen wurde mittels des sogenannten "record-linkage"-Verfahrens mit dem Ziel, die Mortalität zu überprüfen. Die Mortalität bis 31. 12. 1999 nach einem Eingriff während des Jahres 1998 in Innsbruck beträgt 123 von 2229 Patienten, davon 7 von 486 nach PCI und 116 von 1743 verbleibenden Patienten nach Koronarangiographie ohne PCI. Wenn man jeden Todesfall der jeweils letzten PCI zuordnet, entspricht das 1,44 % nach PCI (Gesamtmortalität ist gleich kardiale Mortalität und 6,65 % nach KAG (Gesamtmortalität 6,65 %, kardiale Mortalität 4,59 %. Die zwei Fälle von Hospitalmortalität nach PCI am Tag Null und am Tag 1 nach PCI im Report der "Statistik Österreich" stimmen genau mit jenen zwei Fällen überein, die seinerzeit der Arbeitsgruppe unserer Gesellschaft aus Innsbruck gemeldet worden waren. Die "Drei-Tages"-Mortalität nach PCI und nach KAG ist fast identisch (0,41 bzw. 0,40 %. Theoretisch wäre es möglich, mit mäßigem Aufwand, flächendeckend für ganz Österreich, die Gesamtmortalität nach Herzkatheteruntersuchungen mit hoher Präzision festzulegen, eine lohnende Herausforderung für die

  9. ElevationDEM_DEM3p2M

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area(s): Chittenden County 2004 3.2m and Digital Elevation Model (DEM) datasets of various "hydro-treatments": DEM,...

  10. ElevationDEM_DEM1p6M2008

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area(s): Missisquoi Lower 2008 1.6m and Digital Elevation Model (DEM) datasets of various "hydro-treatments": DEM,...

  11. ElevationDEM_DEM0p7M2013

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area: Rutland/GI Counties 2013 0.7m and Digital Elevation Model (DEM) datasets of various "hydro-treatments": DEM,...

  12. ElevationDEM_DEM1p6M2010

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area(s): Missisquoi Upper 2010 1.6m and Digital Elevation Model (DEM) datasets of various "hydro-treatments": DEM,...

  13. ElevationDEM_DEM3p2M2004

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area(s): Chittenden County 2004 3.2m and Digital Elevation Model (DEM) datasets of various "hydro-treatments": DEM,...

  14. ElevationDEM_DEM0p7M2015

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area(s): Windham County 2015 0.7m and Digital Elevation Model (DEM) datasets of various "hydro-treatments": DEM,...

  15. ElevationDEM_DEM1p6M2012

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area(s): Addison County 2012 1.6m and Digital Elevation Model (DEM) datasets of various "hydro-treatments": DEM,...

  16. ASTER DEM performance

    Science.gov (United States)

    Fujisada, H.; Bailey, G.B.; Kelly, Glen G.; Hara, S.; Abrams, M.J.

    2005-01-01

    The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument onboard the National Aeronautics and Space Administration's Terra spacecraft has an along-track stereoscopic capability using its a near-infrared spectral band to acquire the stereo data. ASTER has two telescopes, one for nadir-viewing and another for backward-viewing, with a base-to-height ratio of 0.6. The spatial resolution is 15 m in the horizontal plane. Parameters such as the line-of-sight vectors and the pointing axis were adjusted during the initial operation period to generate Level-1 data products with a high-quality stereo system performance. The evaluation of the digital elevation model (DEM) data was carried out both by Japanese and U.S. science teams separately using different DEM generation software and reference databases. The vertical accuracy of the DEM data generated from the Level-1A data is 20 m with 95% confidence without ground control point (GCP) correction for individual scenes. Geolocation accuracy that is important for the DEM datasets is better than 50 m. This appears to be limited by the spacecraft position accuracy. In addition, a slight increase in accuracy is observed by using GCPs to generate the stereo data. ?? 2005 IEEE.

  17. Coastal Digital Elevation Models (DEMs)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digital elevation models (DEMs) of U.S. and other coasts that typically integrate ocean bathymetry and land topography. The DEMs support NOAA's mission to understand...

  18. Alles Banane? Fiktionale Erinnerung an DDR und Wende in den ersten zwanzig Jahren nach dem Mauerfall

    NARCIS (Netherlands)

    Maczka, Iwona Maria

    2010-01-01

    How are the GDR and the fall of the Berlin Wall remembered? The dissertation “Alles Banane?” deals with this question. It assumes that identity, individual as well as collective, is a social, cultural and political construction based on the memory of the past. This construction is not only pre-shape

  19. Heidegger und der Nationalsozialismus oder die Frage nach dem philosophischen Empirismus

    NARCIS (Netherlands)

    Blok, V.

    2010-01-01

    This contribution discusses the philosophical meaning of Martin Heidegger’s Rectoral address. Firstly, Heidegger’s philosophical basic experience (Grunderfahrung) is sketched as providing the background of his Rectoral address: the being-historical concept of beginning (Anfang). Next, the philosophi

  20. Die Suche nach dem verschollenen Großsteingrab G4 'Onner es' (Onnen, Prov. Groningen)

    NARCIS (Netherlands)

    Groenendijk, Hendrik; Lanting, JN; Woldring, H

    2014-01-01

    On the eastern hillside of the Hondsrug near the hamlet Onnen (Gr.), a scatter of surface finds led to the belief that a megalithic grave (hunebed) must have been present on the Onner es. Through soil radar, test excavation, pollen analysis and coring, the former location of the presumed hunebed was

  1. Nach dem ‚narrative turn‘. Handbücher und Lexika des 21. Jahrhunderts

    Directory of Open Access Journals (Sweden)

    Michael Scheffel

    2012-12-01

    Full Text Available Recent years have seen the appearance of numerous lexica and handbooks de-voted to general narratological questions which collect contributions from dif-ferent disciplines. What are the strengths and weaknesses of these books (each of which is aimed at a large readership? What kind of knowledge is provided, and what understanding of narratology is codified, in these works? This contri-bution approaches these questions in the form of an overview, and arrives at the following conclusion: If narratology is to become a truly transdisciplinary pro-ject, genuine theoretical and methodological exchange between neighboring dis-ciplines needs to be intensified. After the period of expansion in research fields and the current phase of consolidation (as documented in such handbooks and lexica, a closer focus on transdisciplinary collaboration would mark a new step in the development of narratological research.

  2. Indirect MR-arthography in the fellow up of autologous osteochondral transplantation; Indirekte MR-Arthrographie zur Verlaufskontrolle nach autologer osteochondraler Transplantation

    Energy Technology Data Exchange (ETDEWEB)

    Herber, S.; Pitton, M.B.; Kalden, P.; Thelen, M.; Kreitner, K.F. [Mainz Univ. (Germany). Klinik und Poliklinik fuer Radiologie; Runkel, M. [Mainz Univ. (Germany). Klinik und Poliklinik fuer Unfallchirurgie

    2003-02-01

    following autologous osteochondral transplantation. Assessment of transplant vitality, osseous fixation and stability is possible. (orig.) [German] Zielsetzung: Evaluation der Befunde nach indirekter MR-Arthrographie bei Patienten mit autologer osteochondraler Transplantation. Patienten und Methoden: 10 konsekutive Patienten mit einer Mosaik-Plastik wurden drei, 6 und 12 Monate nach dem Eingriff mittels indirekter MR-Arthrographie untersucht. Das MR-Protokoll bei 1,5T beinhaltete neben nativen PD- und T{sub 2}-gewichteten TSE-Sequenzen mit und ohne Fett-Suppression T{sub 1}-gewichtete, fettsupprimierte SE-Sequenzen vor und unmittelbar nach Kontrastmittelgabe sowie nach Bewegung des Gelenkes. Die Bildanalyse wurde gemeinsam von zwei Radiologen durchgefuehrt und beinhaltete die Auswertung der Signalintensitaet (SI) und Integritaet des knoechernen Zylinders ebenso wie der Knorpeloberflaeche, das Vorhandensein eines Knochenmarkoedems und eines Gelenkergusses. Ergebnisse: Drei Monate nach dem Eingriff zeigte sich in allen Faellen in der T{sub 2}-TSE-Sequenz ein ausgepraegtes Knochenmarkoedem auf Empfaenger- und Donorseite, korrespondierend zu einem deutlichem Signalintensitaetsanstieg nach Kontrastmittelgabe. Die Grenzzone zwischen dem Transplantat und dem originaerem Knochen zeigte eine erhoehte SI nach drei und 6 Monaten in der T{sub 2}-TSE-Sequenz sowie nach i.v. Gd-DTPA-Gabe. Eine Transplantatdislokation wurde in keinem Fall beobachtet. Als Zeichen der Vitalitaet des osteochondralen Transplantats normalisierte sich das Marksignal in der T{sub 1}-SE-Sequenz in den meisten Faellen nach 6 bzw. 12 Monaten. Die indirekte MR-Arthrographie war dem Nativ-Scan ueberlegen bei der Beurteilung der knorpeligen Ueberdeckung des Transplantats. In allen Faellen zeigte sich eine komplette Ueberdeckung des knoechernen Zylinders mit Gelenkknorpel. Transplantierter und originaerer hyaliner Knorpel zeigten einen deutlichen Anstieg der SI in der indirekten MR-Arthrographie. Signalalterationen und

  3. Diabetesmanagement nach Pankreatektomie // Diabetes treatment after pancreatectomy

    Directory of Open Access Journals (Sweden)

    Weitgasser R

    2016-01-01

    Full Text Available Dependent on morbidity – pancreatectomy due to a benign or malignant disease – and life expectancy of the patient the individual treatment goal has to be determined. Before pancreatectomy is planned the potential for an autologous islet transplantation should be evaluated. After partial pancreatectomy and still sufficient insulin secretion, treatment according to current ADA/EASD consensus recommendations respectively the guidelines of the Austrian Diabetes Association (ÖDG should be planned.brFollowing total pancreatectomy insulin treatment becomes necessary. As in addition to insulin deficiency glucagon secretion is lacking, high blood glucose excursions are predominant and patients after pancreatectomy are endangered for recurrent severe hypoglycaemic reactions. To cope with this situation, a basal-bolus insulin treatment regimen using multiple daily injections or an insulin pump is recommended. To achieve good glycaemic control a comprehensive diabetes education which enables the patient to regulate diet and daily insulin doses adequately is important. Besides frequent blood glucose measurements the use of continuous glucose monitoring systems (CGM may be useful to support diabetes treatment of these patients in daily life. p bKurzfassung: /bIn Abhängigkeit von der Morbidität – handelt es sich um eine benigne oder maligne Ursache für die Pankreasoperation – und die daraus resultierende Lebenserwartung ist das individuelle Diabetes-Therapieziel festzulegen. Bei geplanter Pankreatektomie sollte die präoperative Evaluierung für eine autologe Inselzelltransplantation erwogen werden. Nach partieller Pankreatektomie und verbleibender ausreichender Insulinsekretion ist eine medikamentöse Therapie entsprechend den aktuellen ADA/EASD-Empfehlungen bzw. den Leitlinien der Österreichischen Diabetes-Gesellschaft (ÖDG vorzuschlagen.brNach totaler Pankreatektomie ist immer eine Insulintherapie nötig. Bei zusätzlich zum Insulinmangel

  4. The Oracle of DEM

    Science.gov (United States)

    Gayley, Kenneth

    2013-06-01

    The predictions of the famous Greek oracle of Delphi were just ambiguous enough to seem to convey information, yet the user was only seeing their own thoughts. Are there ways in which X-ray spectral analysis is like that oracle? It is shown using heuristic, generic response functions to mimic actual spectral inversion that the widely known ill conditioning, which makes formal inversion impossible in the presence of random noise, also makes a wide variety of different source distributions (DEMs) produce quite similar X-ray continua and resonance-line fluxes. Indeed, the sole robustly inferable attribute for a thermal, optically thin resonance-line spectrum with normal abundances in CIE is its average temperature. The shape of the DEM distribution, on the other hand, is not well constrained, and may actually depend more on the analysis method, no matter how sophisticated, than on the source plasma. The case is made that X-ray spectra can tell us average temperature, and metallicity, and absorbing column, but the main thing it cannot tell us is the main thing it is most often used to infer: the differential emission measure distribution.

  5. Hvordan vurderer vi småbørnstraumer?

    DEFF Research Database (Denmark)

    Karsberg, Sidsel

    2012-01-01

    Der er meget begrænset viden om, i hvilken grad små børn påvirkes af traumatiske og stressfulde oplevelser. En meget udbredt teori har været, at helt små børn ikke påvirkes af disse oplevelser i samme grad som ældre børn og voksne, fordi de er for små til at sætte ord på dem. Nyere forskning vise...

  6. Coastal DEMs with Cross-Track Interferometry

    NARCIS (Netherlands)

    Greidanus, H.S.F.; Huising, E.J.; Platschorre, Y.; Bree, R.J.P. van; Halsema, D. van; Vaessen, E.M.J.

    1999-01-01

    Digital elevation models (DEMs) are produced from airborne radar cross-track interferometric measurements. Radar DEMs recorded from perpendicular orientations are intercompared, and compared to DEMs derived from airborne laser altimetry

  7. HELOISA ODER DIE SEHNSUCHT NACH FREUNDSCHAFT

    OpenAIRE

    Niggli, Ursula

    2008-01-01

    Unter dem Aspekt von Freundschaft wird die mehrmaligen Rollenwechsel einschließende Liaison zwischen Abaelard und Heloisa umrisshaft in ihrem Verlauf und ihrer Entwick-lung nachgezeichnet. Das Herzstück meiner Deutung thematisiert die Verführung Heloisas, ihre absolute (reine) Liebe und ihr Freundschaftsbegehren. Nicht weniger ausführlich gehe ich andererseits auf drei mögliche Gründe für Abaelards Unvermögen Heloisa gegenüber ein, und zwar in der Absicht, seine Liebe für...

  8. ElevationDEM_DEM0p7M2014

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area(s): Rutland/GI Counties 2013 0.7m and Digital Elevation Model (DEM) datasets of various "hydro-treatments":...

  9. ElevationDEM_DEM1p4m

    Data.gov (United States)

    Vermont Center for Geographic Information — "Bare Earth" Digital Elevation Model (DEM) data, i.e., a bare ground surface without any objects like plants and buildings on it, was derived from the best available...

  10. NOAA Tsunami Inundation DEM Project

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions. These integrated...

  11. Behandlung der myokardialen Dysfunktion nach kardiopulmonaler Reanimation // Treatment of Post-Cardiac Arrest Syndrome

    Directory of Open Access Journals (Sweden)

    Metzler B

    2015-01-01

    Full Text Available Postresuscitation myocardial dysfunction is a frequent complication after cardiac arrest. The systolic and diastolic dysfunction is usually reversible within 48–72 h. At least transiently positive inotropic support with dobutamine, levosimendan or milrinone is often required. Coronary heart disease is a common cause of cardiac arrest and should be ruled out with an invasive approach with cardiac catheterization and if necessary treated with primary percutaneous coronary intervention. The non-invasive strategies for detecting a myocardial ischemia remain suboptimal in this scenario because of the associated time-delay which would lead to an irreversible myocardial necrosis. With modern therapies myocardial dysfunction, even in the case of a myocardial ischemia, can be treated well. The prognosis of the patients with cardiac arrest is determined essentially by the neurological status. p bKurzfassung: /bEine myokardiale Dysfunktion tritt nach kardiopulmonaler Reanimation häufig auf. Diese sowohl systolische als auch diastolische Dysfunktion ist meist nach ca. 48–72 h reversibel. Vorübergehend ist zur hämodynamischen Stabilisierung der Einsatz von positiv inotropen Medikamenten, wie Dobutamin, Levosimendan oder Milrinon, oft unerlässlich. Eine allenfalls dem Herzstillstand zugrundeliegende ischämische Ursache im Sinne eines akuten Koronarsyndroms sollte mittels Herzkatheteruntersuchung abgeklärt und gegebenenfalls mittels primärer perkutaner Intervention behandelt werden. Die nicht-invasiven Möglichkeiten zum Nachweis eines Koronararterienverschlusses sind in diesem Setting meist nicht geeignet, da aufgrund der damit verbundenen Zeitspanne die Myokardschädigung irreversibel fortschreiten würde. Durch moderne Therapiemöglichkeiten kann die myokardiale Dysfunktion, auch bei vorliegender koronarer Ursache, gut behandelt werden. Die Prognose der reanimierten Patienten ist trotzdem wesentlich durch die neurologische Erholung definiert.

  12. Präoperative Vorhersge der Rezidivrate des klinisch lokalisierten Prostatakarzinoms nach einer radikalen Prostatektomie

    Directory of Open Access Journals (Sweden)

    Graefen M

    1999-01-01

    Full Text Available Die radikale Prostatektomie scheint die zur Zeit effektivste Therapie des klinisch lokalisierten Prostatakarzinoms zu sein. Dennoch liegt die Rezidivrate bei bis zu 40 % der operierten Patienten. Mit dieser Arbeit wurde anhand präoperativer Befunde ein Algorithmus entwickelt, mit welchem die Prognose des klinisch lokalisierten Prostatakarzinoms bereits vor einer operativen Therapie abgeschätzt werden kann. Hierzu wurden multiple präoperative Befunde, welche bei der Diagnose des Prostatakarzinoms erhoben werden, bezüglich ihres Einflusses auf einen PSA-Progress nach radikaler Prostatektomie geprüft. Dies erfolgte mittels einer univariaten Kaplan-Meier Analyse sowie einer multivariaten Statistik (Cox-Regression und CART-Analyse. Schwerpunkt bildete hierbei die Einbeziehung der Ergebnisse der systematischen Sextanten-Biopsie der Prostata. Alle präoperativen Befunde haben in der univariaten Kaplan-Meier Analyse einen signifikanten Einfluß auf ein PSA-Rezidiv. In der Cox-Regression hatte der Anteil an niedrigdifferenziertem Prostatakarzinom den größten Einfluß auf das Auftreten eines Tumorprogresses, gefolgt von der Anzahl der positiven Stanzen in der Biopsie und dem präoperativen PSA-Wert; alle anderen Parameter hatten keinen unabhängig signifikanten Einfluß auf den Tumorprogress. Mittels der zusätzlich durchgeführten CART Analyse konnten verschiedene Risikogruppen definiert werden, deren Rezidivrisiko bei 3 % für Patienten mit geringem Rezidivrisiko sowie 80 % für solche mit einem hohen Rezidivrisiko 2 Jahre nach der Operation betrug. Der niedrigdifferenzierte Tumoranteil hat somit den größten Einfluß auf die Prognose eines klinisch lokalisierten Prostatakarzinoms. Anhand der präsentierten CART-Analysen wurden einfach anwendbare Entscheidungsbäume entwickelt, mit denen eine Abschätzung des Therapieerfolges des klinisch lokalisierten Prostatakarzinoms bereits vor einer Operation möglich ist.

  13. Endovascular brachytherapy to prevent restenosis after angioplasty; Endovaskulaere Brachytherapie in der Restenoseprophylaxe nach Angioplastie und Stentimplantation: Eine Uebersicht

    Energy Technology Data Exchange (ETDEWEB)

    Wohlgemuth, W.A.; Bohndorf, K. [Klinikum Augsburg (Germany). Klinik fuer Diagnostische Radiologie und Neuroradiologie

    2003-02-01

    besteht bei Patienten mit erhoehtem Risiko eine Restenose wie beispielsweise einer Rezidivstenose, einer In-Stent-Hyperplasie, langen ueberstenteten Laesionen, einer langen PTA-Strecke, kleinen Restlumina und Patienten mit Diabetes mellitus. Daten aus dem koronaren Stromgebiet legen nahe, dass waehrend der Bestrahlung ein Sicherheitsabstand von mindestens 4-10 mm beidseits der durch PTA traumatisierten Gefaessstrecke eingehalten werden sollte, um Restenosen an den Bestrahlungsraendern zu vermeiden. Zur Prophylaxe einer Spaetthrombosierung nach Bestrahlung wird im koronaren Stromgebiet eine medikamentoese Begleittherapie mit ASS 100 mg und Clopidogrel 75 mg taeglich ueber mindestens 6 Monate nach PTA und 12 Monate nach Stentneumimplantation empfohlen, gesicherte Erkenntnisse fuer periphere Arterien existieren noch nicht. (orig.)

  14. Focal neuropathies following percutaneous nephrolithotomy (PCNL – preliminary study [Fokale Neuropathien nach perkutaner Nephrolithotomie (PCNL

    Directory of Open Access Journals (Sweden)

    Kalantari, Behnam Behmardi

    2013-06-01

    Full Text Available [english] Introduction: Postoperative neurological complications in pelvic and renal surgery are a well-known clinical problem and their morbidities are important. We designed this study to determine prevalence and risk factors of such complications after percutaneous nephrolithotomy (PCNL surgery.Material and methods: A cross-sectional study was performed during February and July 2011 on 68 PCNL cases. Demographic data and surgery reports were gathered and comprehensive neurological physical examination carried out before and after surgery. Then, data was analyzed using software SPSS 18. Results: The ultimate sample included 30 (46.2% male and 35 (53.8% female patients with a mean age of 47.9 ± 11.47 years. In intercostal and lumbosacral plexus area, sensory neurological complications occurred in 8 patients (12.31%, 4 men and 4 women. The most common involved dermatomes and nerves were T12 (8 cases. There was a significant correlation between prolonged duration of surgery and prevalence of sensory complications (p[german] Einleitung: Postoperative neurologische Komplikationen bei operativem Eingriff an Becken und Niere sind ein bekanntes klinisches Problem und deren Krankheitsverläufe sind wichtig. Wir planten diese Studie, um die Prävalenz und die Risikofaktoren derartiger Komplikationen nach perkutaner Nephrolithotomie (PCNL zu erfassen.Material und Methoden: Von Februar bis Juli 2011 wurde eine Querschnittstudie an 68 PCNL-Fällen durchgeführt. Die demographischen Daten und die Operationsberichte wurden ausgewertet und umfassende neurologische und körperliche Untersuchungen wurden vor und nach dem chirurgischen Eingriff vorgenommen. Die Daten wurden mit der Software SPSS 18 analysiert.Ergebnisse: In die Studie einbezogen wurden 30 männliche (46,2% und 35 (53,8% weibliche Patienten mit einem mittleren Alter von 47,9 ± 11,47 Jahren. Bei 8 Patienten (12,31%, bei 4 Männern und 4 Frauen, wurden im Bereich des interkostalen und

  15. Linear and nonlinear approach for DEM smoothening

    Directory of Open Access Journals (Sweden)

    2006-01-01

    Full Text Available One of the biggest problems faced while analyzing digital elevation models (DEMs, particularly DEMs that are produced using photogrammetry, is to avoid pits and peaks in DEMs. Peaks and pits, which are errors, are generated during the surface generation process. DEM smoothening is an important preprocessing step meant for removing these errors. This paper discusses two linear DEM smoothening methods, Gaussian blurring and mean smoothening, and two nonlinear DEM smoothening methods, morphological smoothening and morphological smoothening by reconstruction. The four methods are implemented on a photogrammetrically generated DEM. The drainage network of the resultant DEM is obtained using skeletonization by morphological thinning, and the fractal dimension of the extracted network is computed using the box dimension method. The fractal dimensions are then compared to study the effects of the four smoothening methods. The advantages of nonlinear DEM smoothening over linear DEM smoothening are discussed. This study is useful in landscape descriptions.

  16. Erstnachweis von Taiwania, Cryptomeria und Liquidambar aus dem Bitterfelder und Baltischen Bernstein

    Directory of Open Access Journals (Sweden)

    H. Jähnichen

    1998-01-01

    Full Text Available Aus dem untermiozänen Bernstein von Bitterfeld (Sachsen-Anhalt werden erstmalig ein strukturzeigender Zweig von Taiwania schaeferi, ein isoliertes Nadel-Fragment von Cryptomeria sp. sowie ein Fruchtstand von Liquidambar europaea beschrieben. Außerdem muß “Widdringtonites oblongifolius” (Goeppert & Menge Caspary & Klebs 1906/07 pro parte aus dem obereozänen Baltischen Bernstein nach morphologisch-anatomischen Merkmalskomplexen ebenfalls zu Taiwania schaeferi gestellt werden. “Enormicutis eoconferta” — aff. Cryptomeria spec. (Schneider 1986 aus der obereozänen Braunkohle von Nordwestsachsen muß nach morphologisch-anatomischen Details zu Athrotaxis couttsiae (Heer Gardner revidiert werden. First record of Taiwania, Cryptomeria and Liquidambar from Bitterfeld and Baltic amber A structure-bearing twig of Taiwania schaeferi, an isolated needle-fragment of Cryptomeria spec. as also an aggregate fruit of Liquidambar europaea are firstly described from the Lower Miocene amber of Bitterfeld (Saxony-Anhalt. Moreover “Widdringtonites oblongifolius” (Goeppert & Menge Caspary & Klebs 1906/07 p.p. from the Upper Eocene Baltic amber after morphological-anatomical features must be also assigned to Taiwania schaeferi. “Enormicutis eoconferta” — aff. Cryptomeria sp. (Schneider 1986 from the Upper Eocene brown-coal of North Western Saxony after morphological-anatomical details must be revised to Athrotaxis couttsiae (Heer Gardner. doi:10.1002/mmng.19980010112

  17. Demência de alzheimer

    OpenAIRE

    Galvão, Ana Maria

    2011-01-01

    A doença de Alzheimer é considerada a demência mais comum no ser humano, sendo caraterizada como um distúrbio degenerativo do cérebro que leva à perda de memória (Alzheimer's Association, 2010). A notícia de um diagnóstico de demência causa um intenso impacto na vida de pacientes e familiares. Os principais motivos referem-se à impossibilidade de cura e à progressão por vezes rápida dos sintomas. São comumente evidenciadas reações emocionais negativas envolvendo impotência, medo e...

  18. 222 Blasenhalssuspensionen nach Stamey und Burch: eine Erhebung der Langzeitergebnisse durch Fragebogen

    Directory of Open Access Journals (Sweden)

    Müller G

    2000-01-01

    Full Text Available Von 1984 bis 1996 haben wir 296 Patientinnen wegen einer Stressinkontinenz operiert. Während wir in den ersten Jahren die Nadelsuspensionen nach Stamey (n = 63 bevorzugten, wechselten wir später zur Kolposuspension nach Burch (n = 233. Unsere Untersuchung soll die Ergebnisse beider Operationsmethoden miteinander vergleichen. Die Frühkomplikationen stellten wir anhand der Krankenblätter fest. Eine Blasenentleerungsstörung trat bei 25,4 % (16/63 der nach Stamey Operierten auf, während dies nur bei 8,6 % (20/233 der nach Burch Operierten der Fall war. Nach der Stamey-Operation mußten bei 12,7 % (8/63 der Patientinnen ein oder beide Suspensionsfäden wieder entfernt werden. Dies war nach der Burch-Operation nicht erforderlich. Andere Komplikationen traten nur sporadisch auf. Zur Beurteilung des subjektiven Operationserfolges verschickten wir einen Fragebogen, der von 35 nach Stamey und von 187 nach Burch Operierten beantwortet wurde. Die mittlere Beobachtungszeit nach der Operation nach Stamey betrug 9,7 Jahre, nach der Operation nach Burch 4,5 Jahre. Der Zeitraum der absoluten Kontinenz nach der Operation wurde nach Angaben von 104 Patientinnen mit einem Follow-up von mindestens 6 Jahren festgestellt. 21,9 % (7/33 der nach Stamey und 8,4 % (6/71 der nach Burch Operierten wurden primär nicht völlig kontinent. Nach zwei Jahren waren nach beiden Operationen noch etwa 50 % absolut trocken und nach 7 Jahren etwa 30 %. Die subjektive Beurteilung des Operationsergebnisses war aber unterschiedlich: 56,2 % (105/187 der "Burch"-Patientinnen bezeichneten ihren Zustand als geheilt oder erheblich gebessert, 20,3 % (38/187 als mäßig gebessert und 23,5 % (44/187 als unverändert oder verschlechtert, während nur 42,9 % (15/35 der "Stamey"-Patientinnen einen Erfolg sahen, 22,9 % (8/35 einen mäßigen Erfolg und 34,2 % (12/35 einen Mißerfolg. Die Operation nach Burch hatte in unserem Krankengut weniger Frühkomplikationen zur Folge, und ihre

  19. 76 FR 77696 - Establishment of the Naches Heights Viticultural Area

    Science.gov (United States)

    2011-12-14

    ... vineyards on the Naches Heights. Soils After the volcanic flow of andesite cooled and hardened to form the..., including the Weirman, Wenas, and Kittitas series, are subject to seasonal flooding and a water table close... rooting depths that can reach the water table and be frozen during extreme cold weather. Further,...

  20. Information to go: Kommunikation im Prozess der Migration am Beispiel syrischer und irakischer Flüchtlinge auf ihrem Weg nach Deutschland

    Directory of Open Access Journals (Sweden)

    Anke Fiedler

    2016-07-01

    Full Text Available Vor dem Hintergrund der Flüchtlingsdebatte in Deutschland 2015 wird in diesem Beitrag danach gefragt, welche (Massen-Kommunikationskanäle Flüchtlinge vor, während und nach der Flucht nutzen, um sich über migrationsrelevante Themen zu informieren und sich darüber mit anderen Migrationswilligen auszutauschen. Dabei wird nicht nur die Frage nach der subjektiven Bewertung der genutzten Quellen gestellt, sondern auch untersucht, ob die Flüchtlinge eine informierte Entscheidung in den verschiedenen Phasen der Migration treffen. Auf Basis des Uses-and-Gratifications-Ansatzes und der Handlungstheorie (symbolischer Interaktionismus wurden zwischen November 2015 und Februar 2016 vier Fokusgruppen und 36 Tiefeninterviews mit syrischen und irakischen Flüchtlingen durchgeführt. Die Ergebnisse verdeutlichen, dass sich die befragten Flüchtlinge vor und während der Flucht gut informiert fühlten, da persönliche Kontakte und soziale Medien die Informationsbedürfnisse weitgehend befriedigen konnten. Informationsdefizite zeigten sich vor allem nach der Ankunft in Deutschland.

  1. Småhuse

    DEFF Research Database (Denmark)

    Munch-Andersen, Jørgen

    Denne SBI-anvisning indeholder vejledning om dimensionering og udførelse af almindelige småhuse med indtil 2 etager i overensstemmelse med kravene i Bygningsreglement for småhuse, 1998. Anvisningen behandler varmeisolering, fugtisolering, lydisolering, brand, vådrum, indeklima samt styrke og...

  2. Osteomyelitis der Wirbelsäule und Bildung eines Abzesses am linken Oberschenkel nach Implantation eines endovaskulären Strents in die Arteria femoralis superficialis sinistra

    Directory of Open Access Journals (Sweden)

    Brodmann M

    2000-01-01

    Full Text Available Die perkutane transluminale Angioplastie (PTA mit nachfolgender Implantation von selbstexpandierbaren intravaskulären Stents ist mittlerweile eine etablierte Methode zur Behandlung von arteriosklerotischen Läsionen geworden. Nachfolgende septische Komplikationen dieses Eingriffes, manches Mal mit tödlichem Ausgang, sind in der Literatur beschrieben, gelten jedoch als sehr selten. Daher gibt es auch eine sehr kontroversielle Meinung über die prophylaktische Gabe von Antibiotika bei der Implantation von Stents. Wir beschreiben einen Patienten, dem ein gecoverter Stent in die Arteria femoralis superficialis sinistra implantiert wurde und bei dem sich nachfolgend ein Abszeß um den Stent entwickelte. Der Patient hatte weder vor der Stentimplantation eine prophylaktische, noch im Anschluß eine begleitende antibiotische Therapie erhalten. Nach Diagnose des Abszesses wurde der Patient antibiotisch massiv abgedeckt und konnte in zufriedenstellendem Allgemeinzustand nach Hause entlassen werde. Zu Hause jedoch setzte der Patient seine antibiotische Therapie ab. Daraufhin entwickelte der Patient Zeichen einer schweren Allgemeinsepsis mit einer Spondylodiscitis im Bereich von TH 12 und L1 mit prae- und paravertebraler Infiltration, so wie auch einen Abszeß im Bereich des linken Musculus psoas.

  3. Digtial Elevation Model (DEM) 250K

    Data.gov (United States)

    Kansas Data Access and Support Center — Digital Elevation Model (DEM) is the terminology adopted by the USGS to describe terrain elevation data sets in a digital raster form. The standard DEM consists of a...

  4. Digitial Elevation Model (DEM) 100K

    Data.gov (United States)

    Kansas Data Access and Support Center — Digital Elevation Model (DEM) is the terminology adopted by the USG to describe terrain elevation data sets in a digital raster form. The standard DEM consists of a...

  5. ElevationDEM_DEMHF2M2012

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area(s): Bennington County 2012 2.0m and Digital Elevation Model (DEM) datasets of various "hydro-treatments": DEM,...

  6. Digital Elevation Model (DEM) 24K

    Data.gov (United States)

    Kansas Data Access and Support Center — Digital Elevation Model (DEM) is the terminology adopted by the USGS to describe terrain elevation data sets in a digital raster form. The standard DEM consists of a...

  7. Lassen Veränderungen des Prostata-spezifischen Antigen- (PSA- Spiegels nach Prostatastanzbiopsie Rückschlüsse auf das pathologische Ergebnis zu?

    Directory of Open Access Journals (Sweden)

    Volkmer BG

    2004-01-01

    Full Text Available Einleitung: Die diagnostische Biopsie der Prostata führt bekanntermaßen zum Anstieg des Serum-PSA-Spiegels. Diese prospektive Untersuchung sollte die Frage klären, ob die Änderungen des Serum-PSA-Spiegels nach Stanzbiopsie Rückschlüsse auf das histologische Ergebnis zulassen und so als Entscheidungshilfe bei der Frage der Rebiopsie dienen können. Patienten und Methoden: Insgesamt 79 konsekutive Patienten mit klinischem Verdacht auf das Vorliegen eines Prostatakarzinoms (PCA und einem Gesamt-PSA 50 ng/ml wurden in die Studie eingeschlossen. Ausschlußkriterien waren klinische Hinweise für eine Prostatitis und Prostatabiopsie innerhalb der letzten 3 Monate. Die Serum-PSA-Werte wurden mit einem ultrasensitiven Enzymimmunoassay bestimmt. Die Bestimmung des Gesamt-PSA und des freien PSA im Serum erfolgte unmittelbar vor und 60 Minuten nach der Biopsie. Die Spiegel des Gesamt-PSA und freien PSA, sowie die f/t-PSA-Ratio vor und nach Biopsie wurden in Korrelation zum histologischen Ergebnis gesetzt. Ergebnisse: 86 Biopsieserien wurden bei 79 Patienten durchgeführt. 38 Biopsieserien diagnostizierten ein PCA, 48 eine benigne Prostatahyperplasie (BPH. Die abschließende Histologie nach wiederholter Biopsie war PCA und BPH in je 43 Fällen. Insgesamt fand sich ein Anstieg des durchschnittlichen Gesamt-PSA von 18,39 ng/ml auf 107,8 ng/ml, des durchschnittlichen freien PSA von 3,43 ng/ml auf 33,7 ng/ml und der durchschnittlichen f/t PSA-Ratio von 18,1 % auf 52,0 %. Es fand sich keine Korrelation zwischen dem Anstieg dieser Parameter und der Anzahl der Biopsiezylinder (4–51. Bezüglich des histologischen Befundes ergaben sich statistisch signifikante Unterschiede für das Gesamt-PSA vor und die f/t PSA-Ratio vor und nach Stanzbiopsie. Schlußfolgerung: Die Analyse der PSA-Parameter nach Stanzbiopsie bietet keine zusätzliche Information über die konventionellen PSA-Parameter vor der Biopsie hinaus. Sie korrelieren vor allem nicht mit falsch

  8. After the EEG is before the EEG. Subsidisation of renewable energy plants under the PV amendment of 2012; Nach dem EEG ist vor dem EEG. Die Foerderung von Erneuerbare-Energien-Anlagen nach der PV-Novelle 2012

    Energy Technology Data Exchange (ETDEWEB)

    Oppen, Margarete von [Sozietaet Geiser und von Oppen, Berlin (Germany); Gross, Rene [Bundesverband Solarwirtschaft e.V., Berlin (Germany)

    2012-08-15

    On 28 June 2012, following an agreement proposal by the mediation committee, the German parliament was at last able to cast its final vote on the ''Law Amending the Legal Framework for Electricity from Solar Radiation Energy and Further Changes to the Law Governing Renewable Energy Resources (in the following: EEG), which had initially already been agreed on in late March 2012. The present article endeavours to give a practice-oriented overview of the current regulatory status concerning the subsidisation of electricity from solar radiation energy.

  9. Veränderungen verschiedener Symptomenscores nach transurethraler Prostataresektion

    Directory of Open Access Journals (Sweden)

    Hakenberg OW

    1999-01-01

    Full Text Available Das Ziel der vorliegenden Arbeit war die Untersuchung der Aussagekraft verschiedener Symptomen- und Lebensqualitäts-Scores bei Patienten mit symptomatischer Prostatahyperplasie. Der Internationale Prostata-Symptomenscore mit Lebensqualitätsindex, der "Bother Score" der American Urological Association und der "Benign Prostatic Hyperplasia Impact Index" wurden benutzt, um Symptomenprofile von Patienten vor, sowie drei und sechs Monate nach transurethraler Prostataresektion (TURP zu erheben. Untersucht wurden 96 Patienten mit einem Durchschnittsalter von 69,9 Jahren, die zwischen Dezember 1996 und Dezember 1997 transurethral reseziert wurden. Der Durchschnittswert für das präoperativ sonographisch bestimmte Prostatavolumen betrug 50,2 ml, für das Resektionsgewicht 25,9 g, sowie für den maximalen Flow vor TURP 9,68 ml/Sek und 21,2 ml/Sek drei Monate postoperativ. Die statistische Analyse der Ergebnisse zeigte eine signifikante Verbesserung aller Symptomenscores 3 Monate nach TURP (p jeweils 0,001, und weitere signifikante Verbesserungen nach 6 Monaten (p 0,007 bis p 0,05. Alle zeitgleich erhobenen vier Symptomenscores korrelierten miteinander (Spearmans Korrelation, p 0,001 bis 0,002. Der präoperative IPSS-Wert zeigte eine hohe Sensitivität und Spezifität in der Vorhersage der postoperativen Verbesserung: positiver und negativer prädiktiver Wert bei einem IPSS-Grenzwert von 15 Punkten lagen bei 84 % bzw. 78,6 %. Somit zeigten alle vier Scores deutliche Verbesserungen nach TURP, wobei der IPSS bei hohem prädiktivem Aussagewert als Indikationsparameter für die TURP am geeignetsten erscheint, und die Verwendung zusätzlicher Lebensqualitäts-Scores damit keine Vorteile bringt.

  10. Draft Genome Sequences of Stenotrophomonas maltophilia Strains Sm32COP, Sm41DVV, Sm46PAILV, SmF3, SmF22, SmSOFb1, and SmCVFa1, Isolated from Different Manures in France

    Science.gov (United States)

    Bodilis, Josselin; Youenou, Benjamin; Briolay, Jérome; Brothier, Elisabeth; Favre-Bonté, Sabine

    2016-01-01

    Stenotrophomonas maltophilia is a major opportunistic human pathogen responsible for nosocomial infections. Here, we report the draft genome sequences of Sm32COP, Sm41DVV, Sm46PAILV, SmF3, SmF22, SmSOFb1, and SmCVFa1, isolated from different manures in France, which provide insights into the genetic determinism of intrinsic or acquired antibiotic resistance in this species. PMID:27540065

  11. Information policy in Japan two years after the Tohoku tsunami; Informationspolitik in Japan zwei Jahre nach dem Fukushima-Tsunami

    Energy Technology Data Exchange (ETDEWEB)

    Reinartz, Jerome [atw (Germany)

    2013-04-15

    Two years have passed since the strongest tsunami ever measured in Japan which, ultimately, was the cause of an accident at the Fukushima Daiichi nuclear power plant. In retrospect, the question arises about the consequences of the accident, and also about the conclusions not drawn in Japan. It is a fact that Japan will stick to nuclear power. However, it is also a fact that information policy at the time, especially by the Tepco operating company, had failed. What has since been achieved by dialog with the Japanese society and people all over the world who want to know? Today's slogan is 'as much information to the public as possible.' Now, Tepco is only one out of 11 operating companies. Also the power utilities not affected by the natural disaster have used the opportunity to initiate a more open dialog. Recent opinion polls indicate that the majority of the population in Japan have no intention to give up nuclear power. (orig.)

  12. Die Reichweite der Haftungsprivilegien nach dem SGB VII außerhalb des klassischen Arbeitsunfalls / Tobias Matz ; Claudia Baumann

    Index Scriptorium Estoniae

    Matz, Tobias

    2016-01-01

    Ettevõtte ja kollektiivi vastutusest sotsiaalseadustiku § 104 jj tähenduses ebatraditsiooniliste tööõnnetuste korral (nt koolides õpilaste/õpetajate vigastused; praktikandid kutseõppes; loomade tekitatud vigastused jms)

  13. Mollusken im Auengrünland des Biosphärenreservates Mittelelbe vor und nach dem extremen Sommerhochwasser 2002

    OpenAIRE

    2013-01-01

    Hochwasserereignisse sind von besonderer Bedeutung, da sie die Auenlandschaft räumlich und zeitlich strukturieren und so eine große Vielfalt an Habitaten schaffen. Mollusken sind von großem Artenreichtum, der in den mitteleuropäischen Flussauen am höchsten ist. Sie sind relativ leicht zu determinieren und besitzen zudem eine geringe Mobilität und dementsprechend kleine Minimalareale. Darüber hinaus sind Ökologie und Habitatansprüche der meisten Arten gut bekannt. Dadurch eignen sich Mollusken...

  14. Die Reichweite der Haftungsprivilegien nach dem SGB VII außerhalb des klassischen Arbeitsunfalls / Tobias Matz ; Claudia Baumann

    Index Scriptorium Estoniae

    Matz, Tobias

    2016-01-01

    Ettevõtte ja kollektiivi vastutusest sotsiaalseadustiku § 104 jj tähenduses ebatraditsiooniliste tööõnnetuste korral (nt koolides õpilaste/õpetajate vigastused; praktikandid kutseõppes; loomade tekitatud vigastused jms)

  15. Oszillationen der QT-Zeit nach ventrikulären Extrasystolen zur nichtinvasiven Risikostratifizierung von Patienten nach Myokardinfarkt

    OpenAIRE

    Kraus, Martin

    2010-01-01

    Imbalancen im Bereich der autonomen Innervation des Herzens auf Sinusknotenebene zeigen sich anhand des Fehlens der „heart rate variability“ und der „heart rate turbulence“ und werden bereits zur Risikoeinschätzung von KHK-Patienten herangezogen, während Untersuchungen zur autonomen Dysbalance auf Ventrikelebene bisher kaum durchgeführt wurden. Daher war das Ziel dieser Arbeit eine Risikostratifizierung von Patienten nach einem Myokardinfarkt anhand dynamischer Veränderungen der QT-Zeit, zu d...

  16. Radiotherapy in early stage dupuytren's contracture; Die Radiotherapie des Morbus Dupuytren im Fruehstadium. Langzeitresultate nach einer medianen Nachbeobachtungszeit von 10 Jahren

    Energy Technology Data Exchange (ETDEWEB)

    Adamietz, B.; Sauer, R. [Erlangen-Nuernberg Univ., Erlangen (Germany). Klinik und Poliklinik fuer Strahlentherapie; Keilholz, L. [Erlangen-Nuernberg Univ., Erlangen (Germany). Klinik und Poliklinik fuer Strahlentherapie; Praxis fuer Strahlentherapie, Klinikum Fuerth (Germany); Gruenert, J. [Abt. fuer Plastische und Handchirurgie der Chirurgischen Universitaetsklinik Erlangen-Nuernberg, Erlangen (Germany)

    2001-11-01

    Purpose: In early stage Dupuytren's contracture radiotherapy was applied to prevent disease progression. Long-term results and late toxicity of this treatment were evaluated in a retrospective analysis. Patients and Methods: Between 1982 and 1994, 99 patients (176 hands) received orthovoltage radiotherapy, which consisted of two courses with 5 x 3 Gy (total dose: 30 Gy, daily fractionated; 120 kV, 4 mm Al), separated by a 6 to 8-week pause. The Dupuytren's contracture was staged according to the classification of Tubiana et al. The long-term outcome was analyzed at last follow-up between July and November 1999. The median follow-up was 10 years (range 7-18 years). Late toxicity was assessed using the LENT-SOMA criteria. Results: In Stage N 84% and Stage N/I 67% of cases remained stable. 65% of the cases in Stage I and 83% in Stage II showed progressive nodules and cords. In case of progression we saw no complications after a second radiotherapy or salvage operation. Conclusion: Radiotherapy effectively prevents disease progression for early stage Dupuytren's contracture (Stage N, N/I). Moreover, in case of disease progression despite radiotherapy salvage surgery is still feasible. (orig.) [German] Hintergrund: Im Fruehstadium des Morbus Dupuytren wird die externe Radiotherapie mit dem Ziel eingesetzt, den progressiven Verlauf der Erkrankung zu verhindern. Eine aktuelle Langzeitverlaufskontrolle soll die Ergebnisse und Nebenwirkungen der Radiotherapie darstellen. Patienten und Methode: Wir untersuchten 99 Patienten (176 Haende), welche sich von 1982-1994 einer Radiotherapie an unserer Klinik unterzogen. Jeder Patient erhielt zwei Serien einer Radiotherapie mit jeweils 5 x 3 Gy (Gesamtdosis 30 Gy, 120 kV, 4 mm Al, Bestrahlungspause von 6-8 Wochen nach 15 Gy). Die Beugekontraktur wurde nach Tubiana et al. eingeteilt. Von Juli bis November 1999 erfolgte nach einer medianen Nachbeobachtungszeit von 10 Jahren (7-18 Jahre) eine Kontrolluntersuchung. Die

  17. Coverage Polygons for DEMs of the North-Central California Coast (DEM_coverage_areas.shp)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — A GIS polygon shapefile outlining the extent of the 14 individual DEM sections that crompise the seamless, 2-meter resolution DEM for the open-coast region of the...

  18. Coverage Polygons for DEMs of the North-Central California Coast (DEM_coverage_areas.shp)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — A GIS polygon shapefile outlining the extent of the 14 individual DEM sections that crompise the seamless, 2-meter resolution DEM for the open-coast region of the...

  19. Beobachtungen zu Akutergebnis und Langzeitverlauf nach Hochfrequenzrotationsangioplastie komplexer Koronarstenosen

    OpenAIRE

    Scheerle, Michael

    2002-01-01

    Im Klinikum Heilbronn wurden von Ende 1994 bis Anfang 2000 bei 167 Patienten, 207 Stenosen interventionell angegangen und einer Rot-ablation mit anschließender PTCA zugeführt. Für eine Subgruppe von 62 Patienten wurden zusätzlich umfangreiche anamnestische Daten erhoben. Nach mehreren Monaten erfolgte eine angiographische Nachkontrolle bei 134 Patienten (83,8%) mit 164 Stenosen (82,0%), wobei der Kontrollabstand 3,8 * 0,7 Monate betrug. Keiner der Patienten verstarb in diesem Zeitraum oder mu...

  20. Determinanten der Nachfrage nach Biomilch : eine ökonometrische Analyse

    OpenAIRE

    2011-01-01

    In der deutschen Literatur zum Markt für Biolebensmittel mangelt es bislang an quantitativen, ökonometrischen Analysen, die die Preis- und Einkommenselastizität der Nachfrage untersu-chen. Die vorliegende Arbeit liefert einen Beitrag, diese Forschungslücke zu schließen, indem Käufercharakteristika und Determinanten der Nachfrage nach Biomilch anhand von Daten des GfK-Haushaltspanels Consumer Scan für den Untersuchungszeitraum 2004 bis 2007 quantita-tiv analysiert werden. Es wird ein mehrstufi...

  1. Zur Rekonstruktion einer Typologie jugendlichen Medienhandelns gemäß dem Leitbild der Triangulation

    Directory of Open Access Journals (Sweden)

    Klaus Peter Treumann

    2017-09-01

    Full Text Available Die im Folgenden dargestellten Ergebnisse sind im Rahmen des von der DFG geförderten Forschungsprojekts „Eine Untersuchung zum Mediennutzungsverhalten 12- bis 20-Jähriger und zur Entwicklung von Medienkompetenz im Jugendalter“ entstanden, das gemeinsam von Klaus Peter Treumann, Uwe Sander und Dorothee Meister geleitet wird. Das Forschungsprojekt untersucht das Medienhandeln Jugendlicher sowohl hinsichtlich Neuer als auch alter Medien. Zum einen fragen wir dabei nach den Ausprägungen von Medienkompetenz in verschiedenen Dimensionen und zum anderen konzentrieren wir uns auf die Entwicklung einer empirisch fundierten Typologie jugendlichen Medienhandelns. Methodologisch ist die Untersuchung an dem Leitbild der Triangulation orientiert und kombiniert qualitative und quantitative Zugänge zum Forschungsfeld in Form von Gruppendiskussionen, leitfadengestützten Einzelinterviews und einer Repräsentativerhebung.

  2. Quantenphysik und Kommunikationswissenschaft auf dem Weg zu einer allgemeinen Theorie der Kommunikation

    CERN Document Server

    Hamberger, Erich

    2015-01-01

    Der Quantenphysiker Herbert Pietschmann beschäftigt sich seit Jahrzehnten mit dem Phänomen Kommunikation. Der Kommunikationswissenschaftler Erich Hamberger setzt sich seit langem mit der Frage der Adaptierung erkenntnistheoretischer Einsichten der Quantentheorie für die Geistes- und Biowissenschaften auseinander. 2003 begegnen sich die beiden - und staunen über die „verschränkten Erkenntnisinteressen“. 2006 bestreiten sie eine erste gemeinsame universitäre Lehrveranstaltung. 2011 folgt Das Phänomen Kommunikation transdisziplinär betrachtet. Aus ihrer Zusammenarbeit ist dieses Buch entstanden. Naturwissenschaft arbeitet auf der Grundlage des mechanistischen Denkrahmens. Die bisher einzige Ausnahme ist die Quantenphysik. Weder Leben noch Kommunikation ist mittels des mechanistischen Denkrahmens zu verstehen. Auch der Denkrahmen der Quantenphysik reicht dazu nicht aus. Der Bedarf nach adäquatem Denken im Bereich der Kommunikation kann durch quantenphysikalisches Denken NICHT befriedigt werden, jedoc...

  3. One year of operational experience with the upgraded and modernized Borssele nuclear power plant; Ein Jahr Erfahrung mit dem nachgeruesteten und modernisierten Kernkraftwerk Borssele

    Energy Technology Data Exchange (ETDEWEB)

    Bongers, J.W.M. [EPZ Kernenergie, Borssele (Netherlands); Wiersema, H.T. [KEMA Nuclear, Arnheim (Netherlands)

    1999-10-01

    The operating experience with the modernized Borssele NPP is excellent. The post upgrade operations showed some minor incidents related to the modernization. Part of the incidents were handled immediately, the others were solved during the 1998 outage. This outage was very well organized and executed, resulting in the shortest outage time ever achieved in Borssele. The plant availability in the first operating period after modernization ranged at over 90%. (orig.) [Deutsch] Mit dem modernisierten Kernkraftwerk Borssele wurden sehr gute Erfahrungen gemacht. Waehrend des Betriebes nach Abschluss der Modernisierungsarbeiten kam es zu einigen geringfuegigen Ereignissen, die durch die Modernisierungsmassnahmen verursacht worden waren. Einige dieser Probleme konnten sofort behoben werden, andere wurden waehrend der Revision im Jahre 1998 geloest. Diese Revision wurde hervorragend organisiert und ausgefuehrt und fuehrte dadurch zu den kuerzesten Ausfallzeiten, die jemals in Borssele erzielt wurden. Die Anlagenverfuegbarkeit lag in der ersten Betriebszeit nach den Umbaumassnahmen bei ueber 90%. (orig.)

  4. Das Problem der sogenannten zusammengesetzten Bezirke auf dem Balkan im 11. Jahrhundert: Zwei fallbeispiele

    Directory of Open Access Journals (Sweden)

    Krsmanović Bojana

    2009-01-01

    Full Text Available (nemački In der vorliegenden Arbeit wurden Charakteristika der sogenannten zusammengesetzten militärisch-zivilen Bezirke behandelt, die aus zwei oder drei Untereinheiten bestanden. Diese Untereinheiten der zusammengesetzten Bezirke hatten in der Regel feste zivile und militärische Verwaltungsstrukturen, d.h. sie hatten eine gewisse Unabhängigkeit. Ein zusammengesetzter Bezirk konnte in den Quellen als ein 'thema' (im Singular bezeichnet werden oder auch im Plural als 'themata'. An seiner Spitze befand sich ein Dux/katepano oder gelegentlich auch ein Stratege. Der zivilen Verwaltung stand ein Richter/Prätor vor, welcher häufig das Amt eines anagrapheus innehatte. Weiterhin wurde der zusammengesetzte Bezirk Voleron-Strymon-Thessalonike naher untersucht sowie die Probleme, die mit dem Status seiner Unterheiten, insbesondere mit Voleron, zusammenhängen. Es ist möglich, dass aus denjenigen Gebieten des Balkans, die nach dem Jahr 1018 unter byzantinische Herrschaft gefallen waren, ein zusammengesetzter Bezirk gebildet wurde. Die Rede ist von dem Thema Bulgaria-Sirmium-Paradounavon. Es wird vermutet, dass die demographischen Umstände sowie die ethnische Zusammensetzung der Bevölkerung der Region Einfluss auf die Charakteristika des zusammengesetzten Bezirks hatten. Die zivile Verwaltungsstruktur war hier nicht derart beständig wie in den anderen Gebieten des Balkans, die bereits vor dem Krieg von 976-1018 unter byzantinischer Herrschaft standen. Sirmium und Paradounavon scheinen im zivilen Bereich der Verwaltung von Amtsträgern aus Bulgarien geleitet worden zu sein, wahrend die militärische Führung anscheinend unabhängig von Bulgarien war.

  5. Convolutional Neural Network Based dem Super Resolution

    Science.gov (United States)

    Chen, Zixuan; Wang, Xuewen; Xu, Zekai; Hou, Wenguang

    2016-06-01

    DEM super resolution is proposed in our previous publication to improve the resolution for a DEM on basis of some learning examples. Meanwhile, the nonlocal algorithm is introduced to deal with it and lots of experiments show that the strategy is feasible. In our publication, the learning examples are defined as the partial original DEM and their related high measurements due to this way can avoid the incompatibility between the data to be processed and the learning examples. To further extent the applications of this new strategy, the learning examples should be diverse and easy to obtain. Yet, it may cause the problem of incompatibility and unrobustness. To overcome it, we intend to investigate a convolutional neural network based method. The input of the convolutional neural network is a low resolution DEM and the output is expected to be its high resolution one. A three layers model will be adopted. The first layer is used to detect some features from the input, the second integrates the detected features to some compressed ones and the final step transforms the compressed features as a new DEM. According to this designed structure, some learning DEMs will be taken to train it. Specifically, the designed network will be optimized by minimizing the error of the output and its expected high resolution DEM. In practical applications, a testing DEM will be input to the convolutional neural network and a super resolution will be obtained. Many experiments show that the CNN based method can obtain better reconstructions than many classic interpolation methods.

  6. Automated Quality Control for Ortholmages and DEMs

    DEFF Research Database (Denmark)

    Höhle, Joachim; Potucková, Marketa

    2005-01-01

    The checking of geometric accurancy of orthoimages and digital elevation models (DEMs) is discussed. As a reference, an existing orthoimage and a second orthoimage derived from an overlapping aerial image, are used. The proposed automated procedures for checking the orthoimages and DEMs are based...

  7. A Case Study of Using External DEM in InSAR DEM Generation

    Institute of Scientific and Technical Information of China (English)

    ZHOU Chunxia; GE Linlin; E Dongchen; CHANG Hsingchung

    2005-01-01

    Synthetic aperture radar interferometry (InSAR) has been used as an innovative technique for digital elevation model (DEM) and topographic map generation. In this paper, external DEMs are used for InSAR DEM generation to reduce the errors in data processing. The DEMs generated from repeat-pass InSAR are compared. For steep slopes and severe changes in topography, phase unwrapping quality can be improved by subtracting the phase calculated from an external DEM. It is affirmative that the absolute height accuracy of the InSAR DEM is improved by using external DEM. The data processing was undertaken without the use of ground control points and other manual operation.

  8. Dänische Theologen und Deutschland nach 1945

    DEFF Research Database (Denmark)

    Schjørring, Jens Holger

    2014-01-01

    tre teologer fra det dengang unge teologiske fakultet i Århus, K.E.Løgstrup, Johannes Munck og Regin Prenter havde alle nære forbindelser til tysk teolologi. For dem alle var det afgørende at tage udfordringerne efter nazisme og besættelsesårene alvorligt og genoptage samarbejde og kritisk samtal...

  9. Sonography and CT findings in perigraft reactions after surgical implantation of vascular prostheses; Sonographische und computertomographische Befunde bei Perigraftreaktionen nach operativer Implantation von Gefaessprothesen

    Energy Technology Data Exchange (ETDEWEB)

    Scherer, G. [Abt. Radiodiagnostik der Universitaetsklinik Heidelberg (Germany); Roeren, T. [Abt. Radiodiagnostik der Universitaetsklinik Heidelberg (Germany); Paetz, B. [Abt. Gefaesschirurgie der Chirurgischen Universitaetsklinik Heidelberg (Germany); Hupp, T. [Abt. Gefaesschirurgie der Chirurgischen Universitaetsklinik Heidelberg (Germany); Kauffmann, G.W. [Abt. Radiodiagnostik der Universitaetsklinik Heidelberg (Germany)

    1995-01-01

    Between January 1988 and January 1994, 24 patients with heterologeous vascular bypasses were examined with suspected diagnosis of a perigraft reaction (PGR). All patients were subjected to ultrasound and CT. PGR ist defined as a sterile inflammation along the course of a vascular prosthesis. The typical clinical presentation is a fluctuating tumour with a localised painless swelling. In all cases liquid formations could be confirmed by diagnostic imaging procedures; signs of infection could be excluded. The synopsis of the clinical presentation, the time interval after implantation of the prosthetic material and the signs of sonography and CT can reliably exclude infection of the prosthesis and confirm the diagnosis of a PGR. (orig.) [Deutsch] Von 1/88 bis 1/94 wurden 24 Patienten nach Implantation eines kuenstlichen Blutleiters nach 1,5 bis 12,5 Monaten postoperativ unter dem Verdacht einer klinisch manifesten Perigraftreaktion sonographisch und computertomographisch untersucht. Definitionsgemaess handelt es sich bei der Perigraftreaktion um eine sterile Entzuendung entlang einer vaskulaeren Kunststoffprothese. Klinisch imponiert sie als ein fluktuierender Tumor mit einer lokalen, indolenten Schwellung entlang der Prothese. In allen untersuchten Faellen waren liquide Formationen entlang der kuenstlichen Blutleiter ohne Zeichen eines Protheseninfektes nachzuweisen. Unter Beruecksichtigung der Klinik, des zeitlichen Intervalls und der Korrelation der Bildgebung mit den Laborparametern sowie der Bakteriologie konnte ein Protheseninfekt, der immer noch eine hohe Morbiditaet und Mortalitaet besitzt, zuverlaessig ausgeschlossen werden. (orig.)

  10. Aktuelles aus der Forschung mit menschlichen embryonalen Stammzellen (Mit dem Jahresbericht 2004 der Zentralen Ethikkommission für Stammzellenforschung

    Directory of Open Access Journals (Sweden)

    Beier HM

    2005-01-01

    Full Text Available Im internationalen Diskurs über die Forschung mit menschlichen embryonalen Stammzellen und die Perspektiven, regenerative Therapien zu entwickeln, fanden sich in jüngster Zeit bemerkenswerte Beiträge, auf die wir hier zurückgreifen. In den aufstrebenden Forschungsnationen Südkorea, Taiwan, Singapur und China läuft ein enormer Wettbewerb um die umfangreichsten Forschungsressourcen und die Führung in der embryonalen Stammzellforschung ab. In Europa und in den USA investieren Wissenschaftler Zeit, Forschungsmittel und intellektuelle Kapazität in die Suche nach Wegen, humane embryonale Stammzellen herzustellen, ohne menschliche Eizellen und Embryonen für diese Verfahren opfern zu müssen. In Deutschland finden solche Bemühungen ein positives Echo, weil das Gesetz es verbietet, embryonale Stammzellen aus verwaisten Blastozysten, sog. überzähligen Embryonen, herzustellen. Dem Stammzellgesetz gemäß kann in Deutschland nur unter Ausnahmebedingungen an menschlichen embryonalen Stammzellen geforscht werden. Wissenschaftler dürfen nach Prüfung und Genehmigung eines speziellen Projektantrages durch das Robert-Koch-Institut menschliche embryonale Stammzell-Linien von bestimmten, lizensierten, ausländischen Herstellern importieren. Allerdings müssen diese Zell-Linien vor dem Stichtag, dem 1.1.2002, hergestellt worden sein. Die Zentrale Ethik-Kommission für Stammzellenforschung (ZES, die das Robert-Koch-Institut im Auftrag der Bundesregierung berät, berichtet jedes Jahr über ihre Arbeit. Im zweiten Teil dieses Artikels wird mit freundlicher Genehmigung des Bundesministeriums für Gesundheit und Soziale Sicherheit der ZES-Jahresbericht 2004 veröffentlicht.

  11. Kontinenzprobleme und Darmfunktionsstörungen nach kolorektalen Resektionen

    Directory of Open Access Journals (Sweden)

    Rickert A

    2013-01-01

    Full Text Available Darmfunktionsstörungen sind nach tiefer Rektumresektion häufig. Die typischen Symptome werden auch als „Low Anterior Resection Syndrome“ (LARS zusammengefasst und beinhalten Inkontinenz, erhöhte Stuhlfrequenz, schmerzhafte und fraktionierte Stuhlentleerungen und imperativen Stuhldrang. Neueren Studien zufolge weisen bis zu 75 % der Patienten im Verlauf derartige Beschwerden auf. Der Wegfall des Kolons oder eines Teils davon wird dagegen in der Regel besser toleriert. Dennoch leiden zwischen 10 und 20 % der Patienten an einer Stuhlinkontinenz. Die Therapie kann zumeist konservativ erfolgen (Ernährungsumstellung, medikamentös, Beckenbodengymnastik, Biofeedback. Neuere Therapieansätze sind die sakrale Nervenstimulation und die periphere Stimulation des N. tibialis posterior. Eine operative Therapie mit permanenter Stomaanlage als Ultima Ratio ist nur selten erforderlich, bei schweren therapierefraktären Störungen aber eine sinnvolle Option.

  12. Evaluating the Quality and Accuracy of TanDEM-X Digital Elevation Models at Archaeological Sites in the Cilician Plain, Turkey

    Directory of Open Access Journals (Sweden)

    Stefan Erasmi

    2014-10-01

    Full Text Available Satellite remote sensing provides a powerful instrument for mapping and monitoring traces of historical settlements and infrastructure, not only in distant areas and crisis regions. It helps archaeologists to embed their findings from field surveys into the broader context of the landscape. With the start of the TanDEM-X mission, spatially explicit 3D-information is available to researchers at an unprecedented resolution worldwide. We examined different experimental TanDEM-X digital elevation models (DEM that were processed from two different imaging modes (Stripmap/High Resolution Spotlight using the operational alternating bistatic acquisition mode. The quality and accuracy of the experimental DEM products was compared to other available DEM products and a high precision archaeological field survey. The results indicate the potential of TanDEM-X Stripmap (SM data for mapping surface elements at regional scale. For the alluvial plain of Cilicia, a suspected palaeochannel could be reconstructed. At the local scale, DEM products from TanDEM-X High Resolution Spotlight (HS mode were processed at 2 m spatial resolution using a merge of two monostatic/bistatic interferograms. The absolute and relative vertical accuracy of the outcome meet the specification of high resolution elevation data (HRE standards from the National System for Geospatial Intelligence (NSG at the HRE20 level.

  13. VT Lidar DEM (1 meter) - 2005 - Essex

    Data.gov (United States)

    Vermont Center for Geographic Information — (Link to Metadata) This metadata applies to the following collection area(s): Essex County 2005 1m and Digital Elevation Model (DEM) datasets of various...

  14. Elektromagnetische Strahlung. Informationen aus dem Weltall.

    Science.gov (United States)

    Schäfer, H.

    Contents: Informationen aus dem Weltall. Neue und zukünftige Geräte. Wichtiges und Interessantes aus der Positionsastronomie. Die Helligkeit der Sterne und anderer astronomischer Objekte. Spektroskopie und Spektralanalyse. Beobachtungen außerhalb des optischen Bereiches.

  15. VT Lidar DEM (1 meter) - 2009 - Washington

    Data.gov (United States)

    Vermont Center for Geographic Information — (Link to Metadata) This metadata applies to the following collection area(s): Essex County 2005 1m and Digital Elevation Model (DEM) datasets of various...

  16. Modification of the method of Figgie for determination of joint line shifting in total knee arthroplasty; Modifizierung der Messmethode nach Figgie zur Bestimmung der Gelenklinienverschiebung in der Knieendoprothetik

    Energy Technology Data Exchange (ETDEWEB)

    Classen, T.; Wegner, A.; Knoch, M. von [Universitaet Duisburg-Essen, Klinik fuer Orthopaedie, Essen (Germany)

    2009-06-15

    unterschiedlichen Roentgenbildern schwierig macht. Wir entwickelten daher einen Quotient JL/P (JL Distanz der Tibiagelenklinie zur Tuberositas tibiae, P Distanz der Patellaspitze zur Tibiagelenklinie) zur besseren Vergleichbarkeit. Des Weiteren modifizierten wir diesen Quotient JL/P, indem statt der Tibiagelenklinie eine Tangente an die Femurkondyle als Referenzlinie genutzt wurde. Damit konnten Probleme wie unterschiedlich hohe Polyethylen-Inlays, die mit den Messwerten verrechnet werden muessen, der Slope der tibialen Komponente oder die schlechte Beurteilbarkeit der Tibiagelenkflaeche bei arthrotischen Kniegelenken ausgeschlossen werden. Die Messwerte zeigen fuer den Quotient JL/P eine massive Verschiebung der Gelenklinie nach kranial, was in dem Umfang nicht realistisch erscheint. Die modifizierte Messmethode zeigt ebenfalls eine Kranialisation der Gelenklinie, jedoch in realistischem Umfang. Beide Messmethoden zeigen eine gute Untersucherunabhaengigkeit. Insbesondere die modifizierte Methode JL/P scheint eine gute Methode zur Bestimmung der tibiofemoralen Gelenklinienverschiebung nach einer Knieendoprothese zu sein. (orig.)

  17. Adaptive Filter in SAR Interferometry Derived DEM

    Institute of Scientific and Technical Information of China (English)

    XU Caijun; WANG Hua; WANG Jianglin; GE Linlin

    2005-01-01

    In this paper, the performance of median filter, elevation dependent adaptive sigma median filter, and directionally dependent adaptive sigma median filter are tested on both InSAR Tandem DEM and simulated high-level noisy DEM. Through the comparison, the directionally dependent adaptive sigma median filter is proved to be the most effective one not only in the noise removing but also in the boundary preserve.

  18. DEM FROM SAR:PRINCIPLE AND APPLICATION

    Institute of Scientific and Technical Information of China (English)

    LiDeren; YangJie

    2003-01-01

    The paper gives an overview of the principle and application of generating DEM from SAR, including the principle and processing flow of generating DEM from single SAR and SAR interferometry. Afterwards, the application fields of InSAR for terrain surveying, volcanic terrain surveying and D—InSAR for monitoring ground subsiding are listed and described as well. The problem and prospect of application are also pointed out in the last part of this paper.

  19. DEM FROM SAR:PRINCIPLE AND APPLICATION

    Institute of Scientific and Technical Information of China (English)

    Li Deren; Yang Jie

    2003-01-01

    The paper gives an overview of the principle and application of generating DEM from SAR, including the principle and processing flow of generating DEM from single SAR and SAR interferometry. Afterwards, the application fields of InSAR for terrain surveying, volcanic terrain surveying and D-InSAR for monitoring ground subsiding are listed and described as well.The problem and prospect of application are also pointed out in the last part of this paper.

  20. Sm Transition Probabilities and Abundances

    CERN Document Server

    Lawler, J E; Sneden, C; Cowan, J J

    2005-01-01

    Radiative lifetimes, accurate to +/- 5%, have been measured for 212 odd-parity levels of Sm II using laser-induced fluorescence. The lifetimes are combined with branching fractions measured using Fourier-transform spectrometry to determine transition probabilities for more than 900 lines of Sm II. This work is the largest-scale laboratory study to date of Sm II transition probabilities using modern methods. This improved data set has been used to determine a new solar photospheric Sm abundance, log epsilon = 1.00 +/- 0.03, from 26 lines. The spectra of three very metal-poor, neutron-capture-rich stars also have been analyzed, employing between 55 and 72 Sm II lines per star. The abundance ratios of Sm relative to other rare earth elements in these stars are in agreement, and are consistent with ratios expected from rapid neutron-capture nucleosynthesis (the r-process).

  1. An assessment of TanDEM-X GlobalDEM over rural and urban areas

    Science.gov (United States)

    Koudogbo, Fifamè N.; Duro, Javier; Huber, Martin; Rudari, Roberto; Eddy, Andrew; Lucas, Richard

    2014-10-01

    Digital Elevation Model (DEM) is a key input for the development of risk management systems. Main limitation of the current available DEM is the low level of resolution. DEMs such as STRM 90m or ASTER are globally available free of charge, but offer limited use, for example, to flood modelers in most geographic areas. TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurement), the first bistatic SAR can fulfil this gap. The mission objective is the generation of a consistent global digital elevation model with an unprecedented accuracy according to the HRTI-3 (High Resolution Terrain Information) specifications. The mission opens a new era in risk assessment. In the framework of ALTAMIRA INFORMATION research activities, the DIAPASON (Differential Interferometric Automated Process Applied to Survey Of Nature) processing chain has been successfully adapted to TanDEM-X CoSSC (Coregistered Slant Range Single Look Complex) data processing. In this study the capability of CoSSC data for DEM generation is investigated. Within the on-going FP7 RASOR project (Rapid Analysis and Spatialisation and Of Risk), the generated DEM are compared with Intermediate DEM derived from the TanDEM-X first global coverage. The results are presented and discussed.

  2. SM18 Visits and Access

    CERN Multimedia

    2012-01-01

      VISITS The rules and conditions to be followed for visits in the SM18 Hall are laid out in the EDMS 1205328 document. No visit is allowed without prior reservation.   ACCESS Special access right is needed ONLY from 7 p.m. to 7 a.m. and during week-ends. From 1 December, the current SM18 access database will be closed and a new one “SM18-OWH outside normal hours” started from scratch. Requests, via EDH SM18-OWH, will have to be duly justified.   For further information, please contact Evelyne Delucinge.

  3. Long-term tumor control and fertility after limited paraaortic radiotherapy in stage I seminoma; Langzeittumorkontrolle und Fertilitaet nach paraaortal limitierter Radiotherapie des Seminoms im Stadium I

    Energy Technology Data Exchange (ETDEWEB)

    Sedlmayer, F.; Deutschmann, H.; Rahim, H.; Merz, F.; Kogelnik, H.D. [Landeskliniken Salzburg (Austria). Inst. fuer Radiotherapie und Radio-Onkologie; Joos, H. [Landeskliniken Salzburg (Austria). Urologische Abt.

    1999-07-01

    very unlikely. (orig.) [Deutsch] Hintergrund: Nach alleiniger paraaortaler Bestrahlung testikulaerer Seminome im Stadium I wurden bislang nur wenige Langzeitdaten publiziert. Unser Patientengut wurde retrospektiv hinsichtlich Lokalisation und Zeitpunkt des Auftretens von Rezidiven analysiert. Hodenstreudosen und ihre Auswirkungen auf die Serumspiegel des follikelstimulierenden Hormons (FSH) wurden prospektiv erfasst. Patienten und Methodik: Von 1980 bis 1995 wurden 58 Patienten mit Seminomen im klinischen Stadium I nach der Semikastration ausschliesslich paraaortal bestrahlt (Th12 bis L4). Die applizierte mittlere Gesamtdosis betrug 28,07 Gy ({+-}2,2 SD), die Einzeldosis im Mittel 1,62 Gy ({+-}0,083 SD). Seit 1989 wurde routinemaessig die Streudosis am Resthoden mittels Thermolumineszenzdosimetrie (TLD) erfasst (45 Patienten). FSH-Serumspiegel wurden nach dem Ende der Radiotherapie bei 26 Patienten mit normalen FSH-Ausgangswerten wiederholt bestimmt, um potentielle bestrahlungsinduzierte Stoerungen in der Spermiogenese zu erfassen. Ergebnisse: 57 Patienten wurden im Mittel 69,4 Monate (30 bis 210 Monate) nachbeobachtet, ein Patient wurde aus der Nachbeobachtung verloren. Zwei der 57 Patienten entwickelten ipsilaterale iliakale Lymphknotenrezidive (3,5%), wobei die Rezidive nach 14 Monaten bzw. fuenf Jahren auftraten. Das rezidivfreie Ueberleben betrug nach fuenf Jahren 96,5%, das Gesamtueberleben nach Salvage-Chemotherapie 100%. Die mittlere Hodenstreudosis betrug 22,4 cGy ({+-}8,73 SD). Sieben von 26 Patienten (26,9%) zeigten einen passageren FSH-Anstieg ueber den oberen Normbereich, wobei die Maximalwerte im Mittel 4,2 Monate nach dem Ende der Radiatio erreicht wurden und sich spaetestens innerhalb von 18 Monaten normalisierten. Unterhalb von 20 cGy wurden keine FSH-Erhoehungen beobachtet. Die Hodenstreudosen zeigten keine klare Korrelation zur Wahrscheinlichkeit des Auftretens einer FSH-Erhoehung. Schlussfolgerung: Nach alleiniger paraaortaler Radiotherapie liegt

  4. Beijing Bubble, Beijing Bust: Inequality, Trade, and Capital Inflow into China Beijing Blase, Beijing Krise: Ungleichheit, Handel und Kapitalzufluss nach China

    Directory of Open Access Journals (Sweden)

    James K. Galbraith

    2009-07-01

    Full Text Available This paper explores the relationships between inequality, trade, and capital flows into China since the early 1990s and particularly in the first years of the present decade. We show that the rise in economic inequality in China has more to do directly with the activities associated with China’s financial and building boom, notably in Beijing, than with the massive growth in manufacturing employment and in Chinese exports since China joined the WTO in 2001. Nevertheless, it is likely that a flow of profits from the export boom did feed the speculative fires in the capital and elsewhere, and therefore it should be no surprise that the fall of one should be linked to the fall of the other, in a particularly painful reduction of economic inequality. In diesem Artikel werden die Beziehungen zwischen Ungleichheit, Handel und Kapitalzufluss nach China seit den frühen 1990er Jahren untersucht. Es wird aufgezeigt, dass die steigende wirtschaftliche Ungleichheit in China weit mehr mit Chinas Finanz- und Bauboom insbesondere in Beijing zu tun hat als mit dem großen Anstieg der Beschäftigung in der Produktion und in Chinas Exporten seit dem WTO-Beitritt im Jahr 2001.

  5. Reger: Vier Tondichtungen nach Arnold Böcklin, Op. 128 / Michael Oliver

    Index Scriptorium Estoniae

    Oliver, Michael

    1990-01-01

    Uuest heliplaadist "Reger: Vier Tondichtungen nach Arnold Böcklin, Op. 128, Variations and Fugue on a Theme of J. A. Hiller, Op. 100. Royal Concertgebouw Orchestra, Neeme Järvi" Chandos ABRD 1426. ABTD 1426. CHAN 8794

  6. 2012 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Upper Naches River, Washington

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Watershed Sciences, Inc. (WSI) collected Light Detection and Ranging (LiDAR) data of the Upper Naches River Valley and Nile Slide area of interest on September 30th,...

  7. Reger: Vier Tondichtungen nach Arnold Böcklin, Op. 128 / Michael Oliver

    Index Scriptorium Estoniae

    Oliver, Michael

    1990-01-01

    Uuest heliplaadist "Reger: Vier Tondichtungen nach Arnold Böcklin, Op. 128, Variations and Fugue on a Theme of J. A. Hiller, Op. 100. Royal Concertgebouw Orchestra, Neeme Järvi" Chandos ABRD 1426. ABTD 1426. CHAN 8794

  8. Signale ohne Antwort? Die Suche nach außerirdischem Leben.

    Science.gov (United States)

    Davoust, E.

    This book is a German translation, by M. Röser, of the English version "The cosmic water hole", published in 1991 (see 53.003.080). The original French edition "Silence au point d'eau" was published in 1988 (see 45.003.059). Contents: I. Leben auf der Erde. 1. Kometen und der Ursprung des Lebens. 2. Die zeitliche Dimension des Lebens. 3. Evolution und Katastrophen. 4. Liegt unsere Zukunft im Weltall? II. Leben im Universum. 5. Die Suche nach Leben in der Sonnenumgebung. 6. Die Suche nach Planetensystemen. III. Intelligentes Leben im Universum. 7. Demographie außerirdischer Zivilisationen. 8. Soziologie außerirdischer Zivilisationen. 9. UFO's und Besuche in der Vergangenheit. 10. Strategien bei der Suche nach außerirdischen Zivilisationen. 11. Die Suche nach künstlichen Signalen. 12. Die Diskussion innerhalb der Gesellschaft. 13. Die Stellung des Menschen im Universum.

  9. 24/7 SM slavery.

    Science.gov (United States)

    Dancer, Peter L; Kleinplatz, Peggy J; Moser, Charles

    2006-01-01

    This study describes the nature of 24/7 SM slavery as practiced within the SM (sadomasochistic) community. These SM participants, who attempt to live full-time in owner-slave roles, represent a small proportion of those with SM interests. SM slaves have not been studied systematically to determine if and how they differ from other SM practitioners. An online questionnaire was used to obtain responses from individuals who self-identified as slaves. A total of 146 respondents participated, 53% female and 47% male, ranging in age from 18 to 72. We explored the depth of their relationships, how well they approximated "slavery," and how their relationships were structured to maintain distinct roles. Data showed that in long-term SM slave relationships, a power differential exists which extends beyond time-limited SM or sexual interactions. Owners and slaves often use common, daily life experiences or situations, such as the completion of household chores, money management, and morning or evening routines, to distinguish and maintain their respective roles. In addition, contrary to the perception of total submission, results revealed that slaves exercise free will when it is in their best interests to do so. These relationships were long-lasting and satisfying to the respondents.

  10. OpenSM Monitoring System

    Energy Technology Data Exchange (ETDEWEB)

    2015-04-17

    The OpenSM Monitoring System includes a collection of diagnostic and monitoring tools for use on Infiniband networks. The information this system gathers is obtained from a service, which in turn is obtained directly from the OpenSM subnet manager.

  11. Montesquieu auf der Suche nach Aufklärung

    OpenAIRE

    Lacouture, Jean

    2011-01-01

    Aus dem Band Montesquieu. Franzose - Europäer – Weltbürger, hg. v. E. Böhlke und E. Françoise, Berlin 2005 Anlässlich des 250. Todestags des Baron de La Brède et de Montesquieu veranstaltete die Berlin-Brandenburgische Akademie der Wissenschaften ein Symposion, das auf die Aktualität seines Oeuvres abzielte. Namhafte französische und deutsche Sozial- und GeisteswissenschaftlerInnen diskutierten Potenzen und Grenzen des Operierens mit den Ideen dieses "philosophe" des 18. Jahrhunderts. Montesq...

  12. Klassifikation der Werte des VHI-12 nach Schweregraden

    OpenAIRE

    Gonnermann, U; Nawka, T

    2007-01-01

    Einleitung: Zur Erhebung der psychosozialen und psychischen Situation stimmgestörter Patienten wurde der Voice Handicap Index (VHI) entwickelt . Mit dem VHI wird die durch eine Stimmstörung verursachte Beeinträchtigung der Lebensqualität eines Patienten anhand von 30 stimmbezogenen Fragen gemessen. Die Übertragung in eine einheitliche deutsche Fassung erfolgte 2002; eine verkürzte Version des Fragebogens mit 12 Items (VHI-12) wurde validiert und vorgelegt . Für die praktische Anwendung sollt...

  13. Quality Test Various Existing dem in Indonesia Toward 10 Meter National dem

    Science.gov (United States)

    Amhar, Fahmi

    2016-06-01

    Indonesia has various DEM from many sources and various acquisition date spreaded in the past two decades. There are DEM from spaceborne system (Radarsat, TerraSAR-X, ALOS, ASTER-GDEM, SRTM), airborne system (IFSAR, Lidar, aerial photos) and also terrestrial one. The research objective is the quality test and how to extract best DEM in particular area. The method is using differential GPS levelling using geodetic GPS equipment on places which is ensured not changed during past 20 years. The result has shown that DEM from TerraSAR-X and SRTM30 have the best quality (rmse 3.1 m and 3.5 m respectively). Based on this research, it was inferred that these parameters are still positively correlated with the basic concept, namely that the lower and the higher the spatial resolution of a DEM data, the more imprecise the resulting vertical height.

  14. ALGORITHM FOR GENERATING DEM BASED ON CONE

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    Digital elevation model (DEM) has a variety of applications in GIS and CAD.It is the basic model for generating three-dimensional terrain feature.Generally speaking,there are two methods for building DEM.One is based upon the digital terrain model of discrete points,and is characterized by fast speed and low precision.The other is based upon triangular digital terrain model,and slow speed and high precision are the features of the method.Combining the advantages of the two methods,an algorithm for generating DEM with discrete points is presented in this paper.When interpolating elevation,this method can create a triangle which includes interpolating point and the elevation of the interpolating point can be obtained from the triangle.The method has the advantage of fast speed,high precision and less memory.

  15. Interkulturelle kommunikative Kompetenz – ein Versuch der Operationalisierung aus dem Fach Deutsch an der dänischen Lehrerausbildung

    DEFF Research Database (Denmark)

    Bjerre, Kirsten; Daryai-Hansen, Petra

    2017-01-01

    Mit diesem Artikel versuchen wir, den Begriff 'interkulturelle kommunikative Kompetenz‘ theoretisch zu entwickeln. Wir gehen zunächst der Frage nach, warum im Fach Deutsch als Fremdsprache mit interkultureller kommunikativer Kompetenz gearbeitet werden sollte und welche Herausforderungen sich...... hierbei stellen. Im Anschluss präsentieren wir unser Modell der interkulturellen kommunikativen Kompetenz, das wir für das Fach Deutsch ain der dänischen Lehrerausbildung auf der Grundlage eines Modells von Michael Byram aus dem Jahre 1997 entwickelt haben. Byrams Modell der interkulturellen...... zunächst die Begriffe ‚Kompetenz‘, ‚Kultur‘, ‚kommunikative Kompetenz‘ und ‚interkulturelle Kompetenz‘. Wir konkretisieren die Dimensionen des Modells im Anschluss anhand eines Unterrichtsbeispiels für das Fach Deutsch an der dänischen Einheitsschule („Folkeskole“). Abschließend skizzieren wir, wie unser...

  16. Structure-function analysis and genetic interactions of the SmG, SmE, and SmF subunits of the yeast Sm protein ring.

    Science.gov (United States)

    Schwer, Beate; Kruchten, Joshua; Shuman, Stewart

    2016-09-01

    A seven-subunit Sm protein ring forms a core scaffold of the U1, U2, U4, and U5 snRNPs that direct pre-mRNA splicing. Using human snRNP structures to guide mutagenesis in Saccharomyces cerevisiae, we gained new insights into structure-function relationships of the SmG, SmE, and SmF subunits. An alanine scan of 19 conserved amino acids of these three proteins, comprising the Sm RNA binding sites or inter-subunit interfaces, revealed that, with the exception of Arg74 in SmF, none are essential for yeast growth. Yet, for SmG, SmE, and SmF, as for many components of the yeast spliceosome, the effects of perturbing protein-RNA and protein-protein interactions are masked by built-in functional redundancies of the splicing machine. For example, tests for genetic interactions with non-Sm splicing factors showed that many benign mutations of SmG, SmE, and SmF (and of SmB and SmD3) were synthetically lethal with null alleles of U2 snRNP subunits Lea1 and Msl1. Tests of pairwise combinations of SmG, SmE, SmF, SmB, and SmD3 alleles highlighted the inherent redundancies within the Sm ring, whereby simultaneous mutations of the RNA binding sites of any two of the Sm subunits are lethal. Our results suggest that six intact RNA binding sites in the Sm ring suffice for function but five sites may not.

  17. Structure–function analysis and genetic interactions of the SmG, SmE, and SmF subunits of the yeast Sm protein ring

    Science.gov (United States)

    Schwer, Beate; Kruchten, Joshua; Shuman, Stewart

    2016-01-01

    A seven-subunit Sm protein ring forms a core scaffold of the U1, U2, U4, and U5 snRNPs that direct pre-mRNA splicing. Using human snRNP structures to guide mutagenesis in Saccharomyces cerevisiae, we gained new insights into structure–function relationships of the SmG, SmE, and SmF subunits. An alanine scan of 19 conserved amino acids of these three proteins, comprising the Sm RNA binding sites or inter-subunit interfaces, revealed that, with the exception of Arg74 in SmF, none are essential for yeast growth. Yet, for SmG, SmE, and SmF, as for many components of the yeast spliceosome, the effects of perturbing protein–RNA and protein–protein interactions are masked by built-in functional redundancies of the splicing machine. For example, tests for genetic interactions with non-Sm splicing factors showed that many benign mutations of SmG, SmE, and SmF (and of SmB and SmD3) were synthetically lethal with null alleles of U2 snRNP subunits Lea1 and Msl1. Tests of pairwise combinations of SmG, SmE, SmF, SmB, and SmD3 alleles highlighted the inherent redundancies within the Sm ring, whereby simultaneous mutations of the RNA binding sites of any two of the Sm subunits are lethal. Our results suggest that six intact RNA binding sites in the Sm ring suffice for function but five sites may not. PMID:27417296

  18. The New Global Digital Elevation Model : TanDEM-X DEM and its Final Performance

    Science.gov (United States)

    Gonzalez, Carolina; Rizzoli, Paola; Martone, Michele; Wecklich, Christopher; Borla Tridon, Daniela; Bachmann, Markus; Fritz, Thomas; Wessel, Birgit; Krieger, Gerhard; Zink, Manfred

    2017-04-01

    Digital elevation models (DEMs) have become widely used in many scientific and commercial applications and there are several local products have been developed in the last years. They provide a representation of the topographic features of the landscape. The importance of them is known and valued in every geoscience field, but they have also vast use in navigation and in other commercial areas. The main goal of the TanDEM-X (TerraSARX add-on for Digital Elevation Measurements) mission is the generation of a global DEM, homogeneous in quality with unprecedented global accuracy and resolution, which has been completed in mid-2016. For over four years, the almost identical satellites TerraSAR-X and TanDEM-X acquired single-pass interferometric SAR image pairs, from which is it possible to derive the topographic height by unwrapping the interferometric phase, unaffected by temporal decorrelation. Both satellites have been flying in close formation with a flexible geometric configuration. An optimized acquisition strategy aimed at achieving an absolute vertical accuracy much better than 10 meters and a relative vertical accuracy of 2 m and 4 m for flat and steep terrain, respectively, within a horizontal raster of 12 m x 12 m, which slightly varies depending on the geographic latitude. In this paper, we assess the performance of the global Tandem-X DEM, characterized in terms of relative and absolute vertical accuracy. The coverage statistics are also discussed in comparison to the previous almost global but with lower resolution DEM provided by the Shuttle Radar Topography Mission (SRTM). The exceptional quality of the global DEM is confirmed by the obtained results and the global TanDEM-X DEM is now ready to be distributed to the scientific and commercial community.

  19. Application of Sm0/Auxiliary and Sm0/MCln System in Organic Synthesis

    Institute of Scientific and Technical Information of China (English)

    ZHANG Yong-Min; LIU Yun-Kuia

    2001-01-01

    @@Though samarium metal itself has strong reducingpower, in most cases, certain additives are still needed when it is used as a reductant because the surface of samarium metal is inactive.Thus Sm0/auxiliary systems are proposed.The explored systems include: Sm0/I2,Sm0/TMSCl, Sm0/THF-NH4Cl (aq.), Sm0/Cp2TiCl2,Sm(Hg), Sm0/cat.KI etc.

  20. Short-term CT findings after osteosynthesis of fractures of the vertebral spine; Kurzfristige Veraenderungen in der Computertomographie nach osteosynthetischer Versorgung von Wirbelsaeulenfrakturen

    Energy Technology Data Exchange (ETDEWEB)

    Schroeder, R.J.; Noor, J.; Herzog, H.; Roettgen, R.; Hidajat, N.; Felix, R. [Klinik fuer Strahlenheilkunde, Charite, Campus Virchow-Klinikum, Humboldt-Univ. zu Berlin (Germany); Klinik fuer Unfall- und Wiederherstellungschirurgie, Charite, Campus Virchow-Klinikum, Humboldt-Univ. zu Berlin (Germany); Pflugmacher, R.; Maeurer, J. [Radiologie am Prinzregentenplatz, Muenchen (Germany)

    2004-05-01

    Veraenderungen insbesondere degenerativer Art zu evaluieren. Material und Methode: Es wurden die prae- und postoperativen computertomographischen Untersuchungen von 55 Patienten (43 Maenner, 12 Frauen, Alter: 7 - 73 Jahre, x = 37,7 Jahre) mit traumatischen.Wirbelsaeulenfrakturen retrospektiv ausgewertet, welche mittels Fixateur-interne-Anlage operativ stabilisiert wurden. Der Abstand von der Operation zur ersten postoperativen CT-Nach-untersuchung betrug maximal eine Woche, zur kurzfristigen zweiten 6 bis 24 Monate (Mittelwert: 10,3 {+-} 2,7 Monate). Die von zwei Radiologen im Konsens erstellten Befunde der kurzfristigen postoperativen CT-Untersuchungen wurden mit den prae- und unmittelbar postoperativen CT-Befunden sowie den klinisch-neurologischen Befunden verglichen und statistisch mittels des Chi-Quadrat- oder des Fisher's-Exact-Tests analysiert. Ergebnisse: Es fand sich kein statistisch signifikanter Zusammenhang zwischen dem Patientenalter und dem Auftreten von Osteoporose, Spondylarthrose, Skoliose, Spondylolisthesis oder Bandscheibenveraenderungen nach posttraumatischer operativer Stabilisierung mittels eines Fixateurs interne (p > 0,05). Ebenfalls ergab sich keine statistisch nachweisbare Abhaengigkeit zwischen der Frakturart, Frakturlokalisation, dem Bestehen eines Polytraumas, dem Operationsweg oder der angewandten Instrumentierung und dem Auftreten einer postoperativen degenerativen Veraenderung an den angrenzenden Segmenten. Ein Hinweis, dass eine Mehrsegmentstabilisierung oder mehrere vorangegangene Wirbelsaeulenoperationen fuer Degenerationen praedestinieren, wurde in der vorliegenden Arbeit nicht gefunden (p > 0,05). Als einziger Risikofaktor erwies sich das Vorliegen einer Rotationsberstungsfraktur vom Typ C1.3, bei der es vermehrt zu einer postoperativen skoliotischen Fehlhaltung bei allerdings nur geringer Fallzahl in dieser Gruppe kam. (orig.)

  1. SM*A*S*H

    CERN Document Server

    Ringwald, Andreas

    2016-01-01

    We present a minimal model for particle physics and cosmology. The Standard Model (SM) particle content is extended by three right-handed SM-singlet neutrinos N_i and a vector-like quark Q, all of them being charged under a global lepton number and Peccei-Quinn (PQ) U(1) symmetry which is spontaneously broken by the vacuum expectation value v_sigma around 10^{11} GeV of a SM-singlet complex scalar field sigma. Five fundamental problems -- neutrino oscillations, baryogenesis, dark matter, inflation, strong CP problem -- are solved at one stroke in this model, dubbed "SM*A*S*H" (Standard Model*Axion*Seesaw*Higgs portal inflation). It can be probed decisively by upcoming cosmic microwave background and axion dark matter experiments.

  2. BLAZE-DEM: A GPU based Polyhedral DEM particle transport code

    CSIR Research Space (South Africa)

    Govender, Nicolin

    2013-05-01

    Full Text Available materials for a variety of different geometries. The use of computational modeling tools is essential in evaluation of various designs and processes as computational power increases. However current DEM simulations are only able model a few hundred...

  3. Spiral-CT angiography after intraarterial iliac stent placement; Spiral-CT-Angiographie nach arterieller iliakaler Stentapplikation

    Energy Technology Data Exchange (ETDEWEB)

    Freund, M. [Kiel Univ. (Germany). Klinik fuer Radiologische Diagnostik; Palmie, S. [Kiel Univ. (Germany). Klinik fuer Radiologische Diagnostik; Wesner, F. [Kiel Univ. (Germany). Klinik fuer Radiologische Diagnostik; Heller, M. [Kiel Univ. (Germany). Klinik fuer Radiologische Diagnostik

    1995-10-01

    In a prospective study 32 patients underwent CT-A after stent placement in the iliac arteries. The vascular morphology was analyzed regarding neointimal hyperplasia and calcification pattern. The results were compared with those of clinical findings (walking distance), Doppler ultrasound (ankle-brachial index) and DSA. All 47 stents were visible and patent (100%). One misplacement was identified. A good correlation was found between an improved ankle-brachial index and CT-A (88.5%) and extension of the walking distance and CT-A (92.3%). Concerning location, number and grade of stenoses the results between CT-A and DSA matched in 42.1%. An exact mapping of calcified plaques was possible in all cases. (orig./MG) [Deutsch] Nach perkutaner transluminaler Angioplastie (PTA) und Stenteinlage wurden 32 Patienten prospektiv mittels CT-A untersucht. Es erfolgte eine Analyse der Gefaessmorphologie hinsichtlich neointimaler Hyperplasien und Verkalkungsmuster. Weiterhin wurden die Ergebnisse mit denen der intraarteriellen digitalen Subtraktionsangiographie (i.a. DSA), dem klinischen Befund (Gehstrecke) und der Doppler-Ultraschalluntersuchung (Arm-Knoechel-Index/AKI) verglichen. Alle 47 Stents konnten in der CT-A exakt lokalisiert und als offen identifiziert werden (100%). Eine Stentfehllage wurde diagnostiziert. Der Nachweis neointimaler Hyperplasie gelang aufgrund von Metallartefakten im Stentniveau nicht. Verkalkungen waren in allen Faellen nachweisbar. Eine Uebereinstimmung zwischen DSA und CT-A hinsichtlich des Schweregrades, der Anzahl und Lokalisation von Stenosen fand sich nur in 42,1%. In 88,5% der Faelle bestand eine Uebereinstimmung zwischen CT-morphologischem Befund und verbessertem AKI, in 92,3% mit verlaengerter Gehstrecke. (orig./MG)

  4. ElevationDEM_DEMHF0p7M2013

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area: Rutland/GI Counties 2013 0.7m and Digital Elevation Model (DEM) datasets of various "hydro-treatments": DEM,...

  5. ElevationDEM_DEMHF1p6M2010

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area(s): Missisquoi Upper 2010 1.6m and Digital Elevation Model (DEM) datasets of various "hydro-treatments": DEM,...

  6. ElevationDEM_DEMHF1p6M2012

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area(s): Addison County 2012 1.6m and Digital Elevation Model (DEM) datasets of various "hydro-treatments": DEM,...

  7. ElevationDEM_DEMHF1p6M2008

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area(s): Missisquoi Lower 2008 1.6m and Digital Elevation Model (DEM) datasets of various "hydro-treatments": DEM,...

  8. Thyroid volume reduction following radioiodine therapy in patients with autonomous goitre and Graves` disease; Volumenreduktion der Schilddruese nach Radiojodtherapie bei Patienten mit Schilddruesenautonomie und Morbus Basedow

    Energy Technology Data Exchange (ETDEWEB)

    Dederichs, B. [Klinik und Poliklinik fuer Nuklearmedizin, Univ. Koeln (Germany); Otte, R. [Klinik und Poliklinik fuer Nuklearmedizin, Univ. Koeln (Germany); Klink, J.E. [Klinik und Poliklinik fuer Nuklearmedizin, Univ. Koeln (Germany); Schicha, H. [Klinik und Poliklinik fuer Nuklearmedizin, Univ. Koeln (Germany)

    1996-10-01

    Wochen bis 3 Monate nach RJTh nachweisbar. Schlussfolgerung: Diese Beobachtungen legen den Schluss nahe, dass die thyreoidale Grunderkrankung den therapeutischen Effekt der RJTh beeinflusst. Dies koennte teilweise durch die vollstaendige Suppression des nichtautonomen Gewebes waehrend der RJTh erklaert werden. Fuer die Patienten mit UFA, die im Vergleich zu Patienten mit MFA eine ca. 1,7fach hoehere Herddosis erhalten hatten, fiel die SVR um den Faktor 1,6 staerker aus. Dies belegt einen direkten Zusammenhang zwischen der effektiven Herddosis und dem Ausmass der SVR nach RJTh. (orig.)

  9. Erektile Funktion und Dysfunktion nach radikaler Prostatektomie - Ist die sexuelle Rehabilitation Mythos oder Wirklichkeit?

    Directory of Open Access Journals (Sweden)

    Bannowsky A

    2011-01-01

    Full Text Available Die radikale Prostatektomie (RP stellt derzeit als Standardverfahren des lokal begrenzten Prostatakarzinoms den größten Anteil der definitiven invasiven Therapieformen dar. Der exakte zeitliche Verlauf der Wiedererlangung der Erektionsfähigkeit nach nervenerhaltender RP, sowie dessen Beeinflussbarkeit hinsichtlich Zeitspanne und erfolgreichem Erektionsstatus ist derzeit Ziel verschiedener Studien. Trotz vielversprechender Ergebnisse der einzelnen Arbeitsgruppen ist die optimale Therapiestrategie noch nicht eindeutig geklärt. Eigene Untersuchungen konnten bei nervenschonend operierten Männern in der akuten postoperativen Phase nach Entfernung des transurethralen Dauerkatheters eine spontane nächtliche erektile Aktivität und die Wirksamkeit einer abendlichen niedrig dosierten PDE-5-Hemmer-Einnahme (25 mg Sildenafil 18 Monate nach nervenerhaltender RP nachweisen. Diese positive Beeinflussung der sexuellen Rehabilitation war der Spontanerholung signifikant überlegen.

  10. Activation of blood clotting and fibrinolysis in angiocardiography with ionic and non-ionic contrast medium; Aktivierung von Blutgerinnung und Fibrinolyse nach Angiokardiographie mit ionischem und nichtionischem Kontrastmittel

    Energy Technology Data Exchange (ETDEWEB)

    Winkler, U.H. [Gerinnungsphysiologisches Lab., Zentrum fuer Frauenheilkunde, Universitaetsklinikum Essen (Germany); Park, J.W. [Herz-Zentrum Kaiser-Wilhelm-Krankenhaus, Duisburg (Germany); Weber, S. [Schering AG, Geschaeftsbereich Deutschland, Berlin (Germany); Kothe, A. [Gerinnungsphysiologisches Lab., Zentrum fuer Frauenheilkunde, Universitaetsklinikum Essen (Germany); Schnitker, J. [Inst. fuer Angewandte Statistik GmbH, Bielefeld (Germany); Behrends-Steins, B. [Schering AG, Geschaeftsbereich Deutschland, Berlin (Germany); Albring, M. [Schering AG, Geschaeftsbereich Deutschland, Berlin (Germany)

    1997-06-01

    Blutgerinnung gemessen. Ergebnisse: Unter dem Einfluss von Amidotrizoat waren die Bildung der Prothrombinfragmente 1 und 2 sowie als Ausdruck der Thrombinaktivitaet der Thrombin-Antithrombin-III-Komplex (TAT) merklich hoeher als unter Iopromid, erreicht aber keine statistische Signifikanz (p<0,15). Die Plasmainaktivitaet, ausgedrueckt durch den Plasmin-Antiplasmin-Komplex (PAP), war nach der Angiokardiographie erhoeht. Dieser Effekt war deutlicher ausgepraegt bei Patienten, die das ionische Amidotrizoat erhalten hatten (p<0,05). Die D-dimeren Spaltprodukte und Fibrinabbauprodukte waren unter dem Einfluss von Amidotrizoat gegenueber Iopromid deutlich erhoeht (p<0,01). Die Erhoehung von Fibrinabbauprodukten und D-Dimeren sind ein direktes Mass fuer einen gesteigerten Fibrinabbau und somit indirekt auch fuer eine gesteigerte Bildung von Fibrin. Schlussfolgerung: Die Ergebnisse der hier vorgestellten Studie sind ein Hinweis dafuer, dass antikoagulatorische, die Fibrin-Polymerisierung inhibierende Effekte von ionischem Roentgenkontrastmittel, die in vitro beschrieben wurden, auf die In-vivo-Situation im haemostatischen System nicht uebertragbar sind. (orig.)

  11. The role of DEM at CERN

    CERN Document Server

    Van der Bij, E

    2005-01-01

    The DEM group in the Technical Support department provides services for the fabrication of special printed circuits that are invaluable for the whole particle physics community. The capability is based around a core technology that is developed by using skills to etch and process materials that are not commonly used in industry, combined with production methods used in PCB manufacturing. The role of the prototyping facilities is to assist engineers and physicists and to offer them easy access to competencies often not available from industry. At the same time, with the expertise and production capacity available, it makes that CERN is always geared up to handle emergency situations. The design office and the assembly workshop that are also part of DEM have similar roles that lower the cost and improve the quality and maintainability of electronics developed at CERN.

  12. Quantenfische die Stringtheorie und die Suche nach Weltformel

    CERN Document Server

    Lüst, Dieter

    2011-01-01

    Lässt sich das Verhalten aller Dinge, von den kleinsten Teilchen bis zum Universum, einheitlich beschreiben? Der heißeste Kandidat für die Entwicklung einer Weltformel, die alle physikalischen Phänomene erklären kann, ist die Stringtheorie. Sollte sie sich als richtig erweisen, so würde das unser Verständnis über den Ursprung der Naturgesetze dramatisch verändern. Denn das von uns beobachtete Universum wäre dann vermutlich eine winzige Blase in einem viel größeren Gebilde, dem Multiversum. Um die Stringtheorie und die Idee des Multiversums plausibel zu machen, greift der international bekannte theoretische Physiker Dieter Lüst auf ein Modell zurück: das Leben von Fischen in einem Teich. Eines Tages gelingt es den Fischen, die kleinsten Teilchen zu identifizieren, aus denen alles im Fischteich besteht - eingeschlossen sie selbst. Sie nennen diese Urbausteine Quantenfische, da ihr Verhalten nahelegt, dass sie auch eine Art von Lebewesen sind. Doch der ersten folgt eine weitere Entdeckung der Fisch...

  13. Incorporating DEM uncertainty in coastal inundation mapping.

    Directory of Open Access Journals (Sweden)

    Javier X Leon

    Full Text Available Coastal managers require reliable spatial data on the extent and timing of potential coastal inundation, particularly in a changing climate. Most sea level rise (SLR vulnerability assessments are undertaken using the easily implemented bathtub approach, where areas adjacent to the sea and below a given elevation are mapped using a deterministic line dividing potentially inundated from dry areas. This method only requires elevation data usually in the form of a digital elevation model (DEM. However, inherent errors in the DEM and spatial analysis of the bathtub model propagate into the inundation mapping. The aim of this study was to assess the impacts of spatially variable and spatially correlated elevation errors in high-spatial resolution DEMs for mapping coastal inundation. Elevation errors were best modelled using regression-kriging. This geostatistical model takes the spatial correlation in elevation errors into account, which has a significant impact on analyses that include spatial interactions, such as inundation modelling. The spatial variability of elevation errors was partially explained by land cover and terrain variables. Elevation errors were simulated using sequential Gaussian simulation, a Monte Carlo probabilistic approach. 1,000 error simulations were added to the original DEM and reclassified using a hydrologically correct bathtub method. The probability of inundation to a scenario combining a 1 in 100 year storm event over a 1 m SLR was calculated by counting the proportion of times from the 1,000 simulations that a location was inundated. This probabilistic approach can be used in a risk-aversive decision making process by planning for scenarios with different probabilities of occurrence. For example, results showed that when considering a 1% probability exceedance, the inundated area was approximately 11% larger than mapped using the deterministic bathtub approach. The probabilistic approach provides visually intuitive maps

  14. "Ich Möchert Schon Einmal Nach Wien" – Mief Und Muff In Franz Xaver Kroetz‘ Oberösterreich (1972 Und Der Brasilianischen Übersetzung Von 1979

    Directory of Open Access Journals (Sweden)

    Werner Heidermann

    2015-06-01

    Full Text Available Alta Áustria ist das Heft No. 20 der Reihe Caderno de Teatro Alemão, die vor rund 30 Jahren von verschiedenen brasilianischen Goethe-Instituten herausgegeben wurde. Die Kroetz-Übersetzung selbst ist in Curitiba entstanden, eine Gruppe von Übersetzern zeichnet für sie verantwortlich, geleitet wurde das Projekt von Heidede Emiliy Liede. Wir gehen der Frage nach, inwieweit das fatal Kleinbürgerliche im Österreich der Siebziger Jahre überhaupt einem brasilianischen Theaterpublikum vermittelbar ist. Wird die Enge der Zweierbeziehung mit ihren Fluchttendenzen als gemeinsame soziale Erfahrung gewertet? Ist Oberösterreich ambitionierte österreichische Landeskunde? Umfassende Zivilisationskritik? Frühe Konsumismuskritik? Inwieweit steht hinter dem Erfolg des Stücks nicht auch ein perfides Behagen am Spießertum der Anderen? In derselben Publikationsreihe erschienen Mensch Meier, Das Nest, und Wer durch Laub geht – mithin ein bedeutender Teil Kroetzscher Theaterdichtung. Der Beitrag wird nach kulturellen Affinitäten fragen und Provokationen einzuordnen versuchen, auch in übersetzungstheoretischer Hinsicht.

  15. "Ich Möchert Schon Einmal Nach Wien" – Mief Und Muff In Franz Xaver Kroetz‘ Oberösterreich (1972 Und Der Brasilianischen Übersetzung Von 1979

    Directory of Open Access Journals (Sweden)

    Werner Heidermann

    2014-06-01

    Full Text Available Alta Áustria ist das Heft No. 20 der Reihe Caderno de Teatro Alemão, die vor rund 30 Jahren von verschiedenen brasilianischen Goethe-Instituten herausgegeben wurde. Die Kroetz-Übersetzung selbst ist in Curitiba entstanden, eine Gruppe von Übersetzern zeichnet für sie verantwortlich, geleitet wurde das Projekt von Heidede Emiliy Liede. Wir gehen der Frage nach, inwieweit das fatal Kleinbürgerliche im Österreich der Siebziger Jahre überhaupt einem brasilianischen Theaterpublikum vermittelbar ist. Wird die Enge der Zweierbeziehung mit ihren Fluchttendenzen als gemeinsame soziale Erfahrung gewertet? Ist Oberösterreich ambitionierte österreichische Landeskunde? Umfassende Zivilisationskritik? Frühe Konsumismuskritik? Inwieweit steht hinter dem Erfolg des Stücks nicht auch ein perfides Behagen am Spießertum der Anderen? In derselben Publikationsreihe erschienen Mensch Meier, Das Nest, und Wer durch Laub geht – mithin ein bedeutender Teil Kroetzscher Theaterdichtung. Der Beitrag wird nach kulturellen Affinitäten fragen und Provokationen einzuordnen versuchen, auch in übersetzungstheoretischer Hinsicht.

  16. Ultrasonic and eddy current testing of austenitic platings of reactor pressure vessels - qualification according the ENIQ method; Ultraschall- und Wirbelstrompruefung austenitischer Plattierungen von Reaktorbehaeltern - Qualifizierung nach der Methode von ENIQ

    Energy Technology Data Exchange (ETDEWEB)

    Just, T.; Csapo, G. [TUeV NORD SysTec GmbH and Co. KG, Hamburg (Germany); Brenner, W. [TUeV Sueddeutschland-ET, Mannheim (Germany); Waidele, H. [MPA, Univ. Stuttgart (Germany)

    2004-07-01

    In the context of the research project SR2318, which received funds from the Federal Radiation Protection Office (Bundesamt fuer Strahlenschutz) and the BMU, the accuracy of eddy current and ultrasonic tests of austenitic platings on reactor pressure vessels was investigated. The results were evaluated with a view to qualification of combined ultrasonic and eddy current tests of platings and base materials on the one hand; on the other hand, a standard test procedure according to the ENIQ method (European Network of Inspection Qualification) is proposed which can serve as a basis for qualification of test procedures. Summarizing suggestions are made for updating the KTA 3201.4 regulation for recurrent inspections of platings. The results of research project SR 2351 are considered. (orig.) [German] Im Rahmen des vom Bundesamt fuer Strahlenschutz bzw. des BMU gefoerderten Untersuchungsvorhabens SR2318 wurde die Aussagefaehigkeit von Ultraschall- und Wirbelstrompruefungen an austenitischen Plattierungen von Reaktordruckbehaeltern untersucht. Die im Untersuchungsvorhaben erzielten Ergebnisse werden zum einen hinsichtlich der Qualifizierung der Pruefung von Plattierungen und des daran angrenzenden Grundwerkstoffes mittels mechanisierter Ultraschallpruefung in Kombination mit der Wirbelstrompruefung bewertet, und es wird zum anderen beispielhaft ein Muster fuer eine Qualifizierung nach der Methodik von ENIQ (European Network of Inspection Qualification) vorgeschlagen, nach dem kuenftig bei Qualifikationen von Pruefverfahren vorgegangen werden kann. Als Quintessenz werden daraus Vorschlaege zur Ergaenzung der Regel KTA 3201.4 hinsichtlich der wiederkehrenden Pruefungen (WKP) von Plattierungsbereichen formuliert. Dabei sind die Ergebnisse des Untersuchungsvorhabens SR 2351 einbezogen worden. (orig.)

  17. Global CO{sub 2} emissions 2015. Trend reversion is still waiting, despite hopeful approaches; Weltweite CO{sub 2}-Emissionen 2015. Trendwende laesst trotz hoffnungsvoller Ansaetze nach wie vor auf sich warten

    Energy Technology Data Exchange (ETDEWEB)

    Ziesing, Hans-Joachim

    2016-10-15

    By 2015, global CO{sub 2} emissions were virtually unchanged from 2014 according to provisional calculations. On the whole, a slight increase may have resulted, which has slowed the growth of the past few years. In the previous year alone, the weakest growth since the beginning of the century had been recorded, with only 0.7% of the upturn (with the exception of the crises in 2008/2009). As a result, CO{sub 2} emissions in 2015 were only slightly higher than in the previous year, at 33.1 billion tonnes. A global trend reversal is still likely, but the CO{sub 2} emissions have declined in many countries, particularly in some industrialized countries. [German] Im Jahr 2015 haben sich die weltweiten CO{sub 2}-Emissionen nach vorlaeufigen Berechnungen gegenueber 2014 praktisch nicht veraendert. Insgesamt duerfte sich allenfalls ein leichtes Plus ergeben haben, womit der Zuwachs der vergangenen Jahre erneut gebremst wurde. Schon im Vorjahr war mit einem Plus von nur 0,7 % der bis dahin (mit Ausnahme der Krisenjahre 2008/2009) schwaechste Anstieg seit Beginn des Jahrhunderts zu verzeichnen gewesen. Im Ergebnis blieben die CO{sub 2}-Emissionen 2015 mit reichlich 33,1 Mrd. t nur geringfuegig ueber dem Niveau des Vorjahres. Eine weltweite Trendwende steht wohl noch nach wie vor aus, doch sind immerhin die CO{sub 2}-Emissionen in zahlreichen Laendern, insbesondere in etlichen Industrielaendern, gesunken.

  18. Volcanic geomorphology using TanDEM-X

    Science.gov (United States)

    Poland, Michael; Kubanek, Julia

    2016-04-01

    Topography is perhaps the most fundamental dataset for any volcano, yet is surprisingly difficult to collect, especially during the course of an eruption. For example, photogrammetry and lidar are time-intensive and often expensive, and they cannot be employed when the surface is obscured by clouds. Ground-based surveys can operate in poor weather but have poor spatial resolution and may expose personnel to hazardous conditions. Repeat passes of synthetic aperture radar (SAR) data provide excellent spatial resolution, but topography in areas of surface change (from vegetation swaying in the wind to physical changes in the landscape) between radar passes cannot be imaged. The German Space Agency's TanDEM-X satellite system, however, solves this issue by simultaneously acquiring SAR data of the surface using a pair of orbiting satellites, thereby removing temporal change as a complicating factor in SAR-based topographic mapping. TanDEM-X measurements have demonstrated exceptional value in mapping the topography of volcanic environments in as-yet limited applications. The data provide excellent resolution (down to ~3-m pixel size) and are useful for updating topographic data at volcanoes where surface change has occurred since the most recent topographic dataset was collected. Such data can be used for applications ranging from correcting radar interferograms for topography, to modeling flow pathways in support of hazards mitigation. The most valuable contributions, however, relate to calculating volume changes related to eruptive activity. For example, limited datasets have provided critical measurements of lava dome growth and collapse at volcanoes including Merapi (Indonesia), Colima (Mexico), and Soufriere Hills (Montserrat), and of basaltic lava flow emplacement at Tolbachik (Kamchatka), Etna (Italy), and Kīlauea (Hawai`i). With topographic data spanning an eruption, it is possible to calculate eruption rates - information that might not otherwise be available

  19. 76 FR 30060 - Proposed Establishment of the Naches Heights Viticultural Area (2009R-107P)

    Science.gov (United States)

    2011-05-24

    ... that of the Naches Heights. Soils After the volcanic flow of andesite cooled and hardened to form the... water table close to the surface of the soil, according to NRCS data. In addition, the valley vines have shallow rooting depths that can reach the water table and be frozen during extreme cold weather....

  20. Neurologisches Outcome nach CPR bei schockresistentem Kammerflimmern unter Gabe von Sedacoron(R

    Directory of Open Access Journals (Sweden)

    Müller R

    2003-01-01

    Full Text Available Bei einer protrahierten CPR mit schockresistentem Kammerflimmern kann unter Gabe von Sedacoron(R ein zufriedenstellender internistischer Zustand erreicht werden. Neurologisch bleiben nach 6 Wochen geringe Defizite des Kurzzeitgedächtnisses. Der Autor regt mit dieser Kasuistik eine Fortsetzung der ARREST- und der ALIVE-Studie an, wobei das neurologische Outcome Beachtung finden sollte.

  1. Folgebewertung im vorratsvermögen - Fallstudie zur Vorgehensweise nach IFSR und HGB

    DEFF Research Database (Denmark)

    Quick, Reiner; Warming-Rasmussen, Bent

    2013-01-01

    über die wichstigsten Normen zur Folgebeweriung nach IFSR und HGB sowie zu deren Auslegung. Es schliessen sich ein Fallbeispiel und ein Vorschlag zu dessen Lösung an, in dessen Mittelpunkt sinkende Zeitwerte, die Frage des für die Folgebewerunng relevanten Markts und das Zuschreibungsgebot stehen....

  2. Endovascular brachytherapy from Re-188-filled balloon catheter to prevent restenosis following angioplasty; Endovaskulaere Brachytherapie mit einem Re-188-gefuellten Ballonkatheter zur Praevention der Restenose nach Angioplastie

    Energy Technology Data Exchange (ETDEWEB)

    Kotzerke, J. [Ulm Univ. (Germany). Abt. Nuklearmedizin; Kropp, J. [Technische Univ. Dresden (Germany). Klinik und Poliklinik fuer Nuklearmedizin

    2001-12-01

    Stent implantation and endovascular brachytherapy are the single effective methods to reduce restenosis after angioplasty. Gamma- and beta-emitter can be applied. The use of a liquid beta-emitter filled balloon catheter allows nuclear medicine to participate in this new concept of therapy due to the unsealed source. From various beta-emitters Re-188-perrhenate seems to be the most attractive one regarding logistic, radiation protection and costs. Feasibility of the method was demonstrated by several groups. Interim analysis of ECRIS-2 demonstrate an effectiveness comparable to the best of other irradiation data. (orig.) [German] Die endovaskulaere Brachytherapie ist neben der Stentimplantation bisher die einzige Methode, mit der die Restenoserate nach Angioplastie (PTCA) deutlich reduziert werden kann. Sowohl Gamma- wie auch Betastrahler sind einsetzbar. Die Anwendung eines fluessigen Betastrahlers in einem Ballonkatheter erlaubt dem Nuklearmediziner, an diesem Therapiekonzept zu partizipieren, da es sich um die Anwendung eines offenen radioaktiven Isotops handelt. Von den diversen moeglichen Betastrahlern erscheint Re-188-Perrhenat am geeignetsten zu sein im Hinblick auf die Logistik, den Strahlenschutz und die Kosten. Die Praktikabilitaet dieser Methode wurde von mehreren Zentren bestaetigt. Eine Zwischenauswertung der ECRIS-2-Studie aus Ulm ergibt Daten, die grossen amerikanischen Studien keineswegs nachstehen. (orig.)

  3. Intrafascial hematoma of the musculus rectus abdominis as a complication after laparoscopic operations; Intrafasziale Haematome des Musculus rectus abdominis als Komplikation nach laparoskopischen Operationen

    Energy Technology Data Exchange (ETDEWEB)

    Pennekamp, W. [Radiologische Universitaetsklinik am St. Josef-Hospital, Bochum (Germany); Barbera, L. [Chirurgische Universitaetsklinik am St. Josef-Hospital, Bochum (Germany)

    1998-01-01

    We report on two patients with intrafascial hematoma of the musculus rectus abdominis following laparoscopic operations. One patient was operated on a stenosis of the common iliac artery for an aortofemoral bypass. The other patient was operated on an inguinal hernia. Only a CT scan of the abdomen led to the correct diagnosis, because the use of ultrasound was limited by pneumoperitoneum and bandages, and retroperitoneal bleeding could not be recognized. Computed tomography is a valid method for detecting this complication of laparoscopic surgery. (orig.) [Deutsch] Es wird ueber zwei Patienten berichtet, die nach einer laparoskopischen Operation ein intrafasziales Haematom des Musculus rectus abdominis entwickelten. Bei einem Patienten wurde laparoskopisch ein aortofemoraler Bypass bei hochgradiger A.-iliaca-communis-Stenose, bei dem anderen Patienten ein laparoskopischer Bruchlueckenverschluss bei einer Inguinalhernie durchgefuehrt. Erst die Computertomographie des Abdomens fuehrte in beiden Faellen zur richtigen Diagnose, da Ultraschall aufgrund des Pneumoperitoneous und der Verbandsmaterialien nur bedingt einsetzbar war und retroperitoneale Blutungsansteile nicht erkannt werden konnten. Der Stellenwert der Computertomographie zur Erkennung dieser Komplikation wird hervorgehoben. (orig.)

  4. TanDEM-X Bistatic SAR Processing

    OpenAIRE

    Balss, Ulrich; Niedermeier, Andreas; Breit, Helko

    2010-01-01

    In June, 2010 the German SAR satellite TanDEM-X (TerraSAR-X-Add-on for Digital Elevation Measurements) will be launched. Together with TerraSAR-X, launched June 15, 2007, it will form the first spaceborne bistatic SAR platform. Usually one of the satellite is transmitting (active satellite), while both are receiving. As both satellites fly in a helix orbit constellation, during a recording a satellite has to be passive, if the other one is close to the line of sight to the observation targ...

  5. Blütenvielfalt auf dem Acker

    OpenAIRE

    Petersen, B.M.

    2011-01-01

    Früher zierten zahlreiche Blüten die Äcker. Heute sind die Äcker weitgehend blütenarm. Damit fehlt den Blütenbesuchern die Nahrungsquelle und den Landwirten die Blütenbestäuber. Blütenvielfalt bietet darüber hinaus noch viele weitere Vorteile - auch für den Landwirt. Das Merkblatt will Mut machen, wieder mehr Blüten- und Artenvielfalt auf den Acker zu bringen. Es liefert dem Landwirt dazu viele Ideen und Entscheidungshilfen.

  6. Smøremekanismer ved mekanisk formgivning

    DEFF Research Database (Denmark)

    Bech, Jakob Ilsted; Bay, Niels; Eriksen, Morten

    1997-01-01

    I dette arbejde undersøges den Mikro Plasto Hydrodynamiske smøremekanisme som optræder ved plastisk formgivning, når hydrostatisk indfanget smøremiddel i overfladelommer trænger ud i den omgivende kontakt, og skaber lokale smørefilm mellem emne og værktøj.Smøremekanismen observeres og videofilmes...

  7. Experience with fermentation of grass and grass silage from extensively used grassland. Feasibility study on monofermentation of grass silage from contaminated sites - biomass from grasslands of the Elbe dyke foreland; Betriebserfahrungen mit der Vergaerung von Gras und Grassilagen von extensiv genutztem Gruenland. Machbarkeitsuntersuchung zur Monovergaerung von Grassilagen schadstoffkontaminierter Standorte am Beispiel der eingesetzten Biomasse von Gruenlandflaechen aus dem Deichvorland der Elbe

    Energy Technology Data Exchange (ETDEWEB)

    Heuer, Hans-Juergen [Landwirtschaftskammer Niedersachsen, Bezirksstelle Uelzen (Germany)

    2011-07-01

    This feasibility study was concluded in 2011; monofermentation of grass silage from contaminated sites of the Elbe dyke foreland was investigated. It was found that a biogas operated in monofermentation of grass silage from extensively used grasslands is technically and economically feasible in batch operation. It was also shown that the fermentation residue can be used as agricultural fertilizer, provided that it is first turned in a compost turning unit and then worked into the soil. In view of the high pollutant concentration of the soils in the Elbe dyke foreland, the results of the project give the agricultural businesses in the Elbe valley grasslands an alternative use of the land. [German] Die Machbarkeitsuntersuchung zur Monovergaerung von Grassilagen schadstoffkontaminierter Standorte am Beispiel der eingesetzten Biomasse von Gruenlandflaechen aus dem Deichvorland der Elbe wurde Anfang Mai 2011 abgeschlossen. Im Ergebnis wurde herausgearbeitet, dass sich eine Biogaslage im Monovergaerungsverfahren mit ausschliesslich nur Grassilagen von extensiv gefuehrten Gruenlandflaechen technisch und wirtschaftlich in einer Batch-Anlage betreiben laesst. Auch wurde der Nachweis gefuehrt, dass die Biomasse aus dem Deichvorland der Elbe als Gaerrest auf das Gruenland im Deichvorland unter Beruecksichtigung von naturschutzfachlichen Vorgaben und nach den Vorgaben der guten fachlichen Praxis beim Duengen zurueckgefuehrt werden kann. Vor einer Aufbringung auf dem Gruenland sollte der feste Gaerrest jedoch mit einem Kompost-Umsetzer aufbereitet werden. Nach dem Ausstreuen auf dem Gruenland ist der Gaerrest mit einer Wiesenschleppe einzureiben. Vor dem Hintergrund der hohen Schadstoffbelastung der Boeden im Deichvorland der Elbe, tragen die im Projekt erarbeiteten Ergebnisse dazu bei, den landwirtschaftlichen Betriebsleitern in der Elbtalaue eine alternative Nutzung zur bisherigen Lebensmittelproduktion unterbreiten zu koennen.

  8. MRI and MRS in patients with silicon implants of the breast; MRT und MRS nach Silikonaufbau der weiblichen Brust

    Energy Technology Data Exchange (ETDEWEB)

    Pfleiderer, B.; Heindel, W. [Muenster Univ. (Germany). Radiologische Klinik und Poliklinik

    2001-07-01

    This paper reviews the evaluation of the breast of women by MR-techniques after implantation with silicon gel protheses. The main topics are the diagnosis of implant defects such as extensive ''gel bleed'' and intra- and extracapsular ruptures. Moreover, the MR-detection of siliconomas (encapsulated silicone) and differentiation from malignomas as well as MR-features of chronic foreign body reactions are presented. ''Gel bleed'' is difficult to diagnose unambiguously by MRI alone. The ''linguini'' sign is the only reliable mans to diagnose intracapsular ruptures. The presence of silicone outside the implant capsule indicates extracapsular rupture. The MR-spectroscopic detection of silicone in the liver suggests after short implantation times and a normal MR scan the diagnosis ''gel bleed'', and after longer implantation times of more than 10 years and missing ''linguini'' sign the diagnosis of ruptures due to a dissolved shell of the implant. MRI, in comparison to other imaging modalities, has the highest specificity and sensitivity in the diagnosis of implant defects. Due to its high costs, however, MR is not suitable as a screening tool and should only be used in cases of sonographic suspected rupture or after radical mastectomy. In these cases MRI is the method of choice. (orig.) [German] In dieser Uebersicht wird die Evaluation der weiblichen Brust nach Aufbau mit Silikonmammaprothesen mittels MR-Techniken vorgestellt. Ein Schwerpunkt liegt dabei auf der Defektdiagnostik, d.h. dem Nachweis des so genannten ''Gelblutens'', der intra- und der extrakapsulaeren Ruptur. Daneben wird auf die MR-Detektion von Silikonomen (abgekapseltes Silikon) und deren Abgrenzung von einem Malignom eingegangen und das typische MR-Erscheinungsbild von chronischer Fremdkoerperreaktion vorgestellt. ''Gelbluten'' ist mittels MR-Bildgebung (MRT

  9. First Bistatic Spaceborne SAR Experiments with TanDEM-X

    OpenAIRE

    Rodriguez-Cassola, Marc; Prats, Pau; Schulze, Daniel; Tous-Ramon, Nuria; Steinbrecher, Ulrich; Marotti, Luca; Nanninni, Matteo; Younis, Marwan; Lopez-Dekker, Paco; Zink, Manfred; Reigber, Andreas; Krieger, Gerhard; Moreira, Alberto

    2011-01-01

    TanDEM-X is a high-resolution interferometric mission with the main goal of providing a global and unprecedentedly accurate digital elevation model (DEM) of the Earth surface by means of single-pass X-band SAR interferometry. Despite its usual quasi-monostatic configuration, TanDEM-X is the first genuinely bistatic SAR system in space. During its monostatic commissioning phase, the system has been mainly operated in pursuit monostatic mode. However, some pioneering bistat...

  10. The German ''Energiewende''. Evaluation after the Paris-agreement; Die Deutsche Energiewende. Bewertung nach dem Klima-Abkommen von Paris

    Energy Technology Data Exchange (ETDEWEB)

    Roth, Eike

    2016-12-15

    The World-Climate-Summit 2016 in Paris agreed to exacerbated goals for climate protection. This paper will scrutinize whether Germany can comply with its Paris-obligations by continuing the ongoing German ''Energiewende''. The result is clear-cut: The German ''Energiewende'' is inadequate. Due to the cap-and-trade system of the EU the ''Energiewende'' can in no way contribute to climate protection.

  11. Suche nach dem Higgs-Boson in hadronischen Endzuständen mit fehlender Energie am L3-Experiment bei LEP

    CERN Document Server

    Zöller, Marc Henning

    2005-01-01

    This thesis presents searches for the Higgs boson, which is predicted by the Standard Model of Particle Physics and its extensions in order to endow fermions and bosons with their observed masses. While the Standard Model predicts only one Higgs boson »H«, the Minimal Supersymmetric Extension contains five Higgs bosons. This analysis refers to the light neutral »h«, which has nearly the same properties as the Standard Model Higgs boson. The analyses are based on data taken by the L3 experiment at the Large Electron Positron Collider (LEP) near Geneva during the years 1998 until 2000, which corresponds to an integrated luminosity of 629.7 pb−1 and which were collected in a center-of-mass energy range from 189 GeV to 209 GeV. The Higgs boson searches presented here analyse the data with regard to hadronic events with missing energy, since the visible energy is reduced compared to the total energy given by the LEP collider. According to theoretical prediction these final states can be produced via the Higg...

  12. The German ''Energiewende''. Evaluation after the Paris-agreement; Die Deutsche Energiewende. Bewertung nach dem Klima-Abkommen von Paris

    Energy Technology Data Exchange (ETDEWEB)

    Roth, Eike

    2016-08-01

    The World-Climate-Summit 2016 in Paris agreed to exacerbated goals for climate protection. This paper will scrutinize whether Germany can comply with its Paris-obligations by continuing the ongoing German ''Energiewende''. The result is clear-cut: The German ''Energiewende'' is inadequate. Due to the cap-and-trade system of the EU the '''Energiewende''.

  13. Grid connection point according to EEG. Does the BHG succeed the clearing house?; Netzverknuepfungspunkt nach dem EEG. Folgt der BGH der Clearingstelle?

    Energy Technology Data Exchange (ETDEWEB)

    Fischer, Jochen; Neusuess, Peter [Gassner, Groth, Siederer und Coll., Berlin (Germany). Bereich Anlagenzulassungs- und Energierecht

    2012-02-15

    Since the introduction of the Renewable Energy Law (EEG) in the year 2000, there is a dispute at which point a network operator has to connect an EEG system to his power distribution system. An explicit regulation on the network connection point first was made by the legislator in paragraph 5 EEG 2009. Due to the surprising recommendation of the Clearing House at the end of September 2011, the conflict opened again. At the Federal Court of Justice (Karlsruhe, Federal Republic of Germany), three proceedings are pending on this issue. Until the Federal Court of Justice has decided one of these three proceedings, the plant operator must assess the legal situation on the basis of previous decisions. With this in mind, the authors of the contribution under consideration report on the argumentation of the decisions and on the possibilities to handle the current situation.

  14. Higher efficiency, lower bonuses. Financial incentives for power from biomass according to EEG 2012; Mehr Effizienz, weniger Boni. Die Foerderung von Strom aus Biomasse nach dem EEG 2012

    Energy Technology Data Exchange (ETDEWEB)

    Mueller, Dominik [Ecologic Institute, Berlin (Germany)

    2012-07-01

    The German parliament passed a total of eight new laws for the intended energy turnaround. Apart from changes in atomic law, the focus was on a complete amendment of the Renewables Act (EEG). The contribution outlines the new regulations for power generation from biomass from 2012. It indicates the changes from former regulations and describes the structural changes required for sustainable power supply from biomass, among others.

  15. Optimization of the MSW incinerator in Bremen; Optimierung des Muellheizkraftwerkes (MHW) Bremen auf Basis von CFD-Simulationen und Betriebserfahrungen nach dem Umbau

    Energy Technology Data Exchange (ETDEWEB)

    Klasen, T. [Ingenieurbuero Thomas Klasen (Sipreu-Tec), Muelheim an der Ruhr (Germany); Goerner, K. [Lehrstuhl fuer Umweltverfahrenstechnik und Anlagentechnik, Univ. Duisburg-Essen (Germany); Auel, W. [ThyssenKrupp Xervon Energy GmbH, Duisburg (Germany); Sudau, B. [Abfallbehandlung Nord GmbH, Bremen (Germany)

    2006-07-01

    The lines 2 and 3 of the MSW incinerator in Bremen, which have been in operation since 1969, were modified in order to increase plant availability. Apart from the adjustment of components like grate firing system, ash removal system, combustion control, air system for primary air as well as secondary air and feeding devices, the replacement of the existing roller grate at the boilers 2 and 3 by a new water-cooled moving-grate firing system was one of the main issues of the retrofit activities. The MSW incinerator was modernised based on a simulation study with CFD optimisation. The first measured values showed already very good combustion results. The predicted values for the end-concept, e.g. low CO-concentrations, were confirmed. (orig.)

  16. „Auf den Faktor Geschlecht kann nach den Ergebnissen der Voranalysen verzichtet werden”. Stolpersteine auf dem Weg der Wahrnehmung von komplexen sozialen Wirklichkeiten

    Directory of Open Access Journals (Sweden)

    Michaela Köttig

    2006-11-01

    Full Text Available Der Titel des Buches weckt die Erwartung, umfassend über die Ursachen von jugendlichem Rechtsextremismus aufgeklärt zu werden. Maren Oepke kann diese Erwartungen nicht befriedigend erfüllen und bleibt hinter den Ergebnissen der Rechtsextremismusforschung der letzten Jahre zurück. Dies liegt einerseits darin begründet, dass die Datenbasis ihrer Studie Anfang bis Mitte der 1990er Jahre gewonnen wurde. Andererseits ermöglicht ihr methodisches Vorgehen nur begrenzte Aussagen über Genese und Wirkmechanismen sozialer Prozesse.

  17. Heat grids today and after the German Renewable Energies Act (EEG). A business segment for the agriculture?; Waermenetze heute und nach dem EEG. Ein Betriebszweig fuer die Landwirtschaft?

    Energy Technology Data Exchange (ETDEWEB)

    Clemens, Dietrich; Billerbeck, Hagen [Treurat und Partner Unternehmensberatungsgesellschaft mbH, Lueneburg (Germany). Abt. ' ' Climate and Energy' '

    2016-08-01

    The development of a centralised and sustainable heat supply through the construction of heat grids offers consumers numerous advantages compared to a decentralised energy supply of residential and commercial properties. Where the migration to centralised heat supply relegates fossil fuels through the long-term incorporation of sustainable renewable energy sources, the projects make an important contribution towards meeting the government's climate protection goals. Heat generation and heat sales from renewable energy sources should be ensured in the long term. In the countryside, biogas plant operators are frequently the initiators of heat grid investments, or they take on the role of supplier for the provision of low-cost CHP heat from cogeneration units. In view of the limited remuneration period under the terms of the German Renewable Energy Act, the clock is ticking for the establishment of a centralised heat supply. This paper presents the advantages and disadvantages of a centralised, sustainable heat supply and additionally considers the flexibi/isation of biogas plants in view of the construction of the heat grid and the associated infrastructure. A focus is placed on the security of supply for customers after the discontinuation of remuneration under the German Renewable Energy Act and on how a competitive heat price from alternative energy sources can continue to be ensured.

  18. Gender-Kompetenz – Vermittlung im Kontext Schule: Von Widerständen, dem Wunsch nach fertigen Rezepten und von möglichen Lösungen

    Directory of Open Access Journals (Sweden)

    Kathrin Nachtsheim

    2009-03-01

    Full Text Available Die Autorinnen beschreiben, wie eine Vermittlung von Gender-Kompetenz im Sinne des Gender Mainstreaming an Schulen erfolgen kann und mit welchen Vorbehalten und Widerständen sie es zu tun hat. Schulen als elementare Bildungseinrichtungen sind wichtige gesellschaftliche Institutionen wenn es um Gender Mainstreaming geht und darum, Entwicklungschancen jenseits von geschlechterstereotypen Zuschreibungen zu ermöglichen. Im Bereich Schule zeigen sich ganz aktuell verschiedene genderanalytische Ansatzpunkte: Jungen, die als ‚Verlierer des Bildungssystems’ bezeichnet werden, Mädchen, denen trotz der besseren Schulabschlüsse seltener berufliche Karrieren gelingen und die aus einem sehr kleinen Berufswahlspektrum wählen. Wie sind Jungen für Lesen und Mädchen für Physik zu begeistern? Welche Geschlechterrollenstereotype sind wirksam und wo kann Schule an Veränderungen mitwirken? Welche Kompetenzen benötigen Schulen, Schulleiter/-innen und Lehrer/-innen?

  19. More questions than answers. The repowering according to the EEG novella 2009; Mehr Fragen als Antworten. Das Repowering nach dem EEG 2009

    Energy Technology Data Exchange (ETDEWEB)

    Schomerus, Thomas [Leuphana Univ., Lueneburg (Germany). Umwelt- und Energierecht; Southampton Solent Univ. (United Kingdom); Stecher, Michaela [Leuphana Univ., Lueneburg (Germany). Umwelt- und Energierecht

    2009-09-15

    The repowering is the substitution of already existing old facilities by new wind power systems. An own paragraph was dedicated to the repowering in the EEG novella 2009. With the amendment of the law, the remuneration for the electricity which is produced at onshore wind power systems, repowering systems and offshore plants is regulated in their own standard in each case. The legal supplements and new regulations partly have getting straight functions. However, they also result in a number of new legal questions. The authors of the contribution under consideration report on these legal questions and present solutions. After short remarks to the legal questions of the repowering, the requirements of paragraph 30 at repowering plants and the defaults for old facilities are presented.

  20. Die Suche nach dem Glück in der deutschen Literatur. Zur Bedeutung der blauen Blume in Novalis’ Heinrich von Ofterdingen

    Directory of Open Access Journals (Sweden)

    Simone Malaguti

    2005-12-01

    Full Text Available Assim como Os sofrimentos do jovem Werther e Os anos de aprendizado de Wilhelm Meister de Goethe, o romance Heinrich von Ofterdingen de Novalis é representativo para a literatura alemã. Este romance é também significativo e conhecido pela sua flor azul, um motivo usado por Novalis nesse romance. O artigo analisa a flor azul como um símbolo da busca pela felicidade na literatura alemã. Para tal, os seguintes assuntos são levados em consideração: a conexão entre o homem e a natureza, a cor azul conforme os estudos de Goethe, a flor azul como um motivo da natureza e os sonhos de Heinrich.

  1. Outsourcing Marketing Activities - a strategic option for energy suppliers. Increasing efficiency and reducing costs; Netzvertraeglichkeitspruefungen nach dem Erneuerbare-Energien-Gesetz. Verpflichtung zur Vorlage der Netzdaten

    Energy Technology Data Exchange (ETDEWEB)

    Weissenborn, C. [Bereich Recht und Umwelt, Verband der Elektrizitaetswirtschaft - VDEW - e.V., Berlin (Germany)

    2006-07-03

    The transfer or certain functions in a company which do not belong to the originary core of the business to specialists has becom a normal attitude in economy nowadays. Thus it is no longer something special to decide for outsourcing facturing, personnel, legal or IT service departments. Up to now, marketing was not included in such considerations, not in energy industry at least. The following article shows that this might change in the years to come and explains which advantages could be achieved by outsourcing marketing activities and transferring them to third parties.

  2. Provision of regulating energy in the context of direct marketing according to the EEG 2012; Zur Bereitstellung von Regelleistung im Rahmen der Direktvermarktung nach dem EEG 2012

    Energy Technology Data Exchange (ETDEWEB)

    Breuer, Daniel [Landgericht Koeln (Germany); Osborne Clarke, Koeln (Germany)

    2012-07-01

    Electric power from wind power plants and photovoltaic power plants cannot be stored and is not available at all times. The results are volatile power supply curves, risks of availability forecasting for grid owners or (direct) marketers, and enhanced requirements on grid operation with stable frequency. All this will directly affect the reliability of power supply in Germany. Grid integration and market integration of renewable energy sources are directly connected. The contribution discusses the challenges of ensuring grid stability as well as the legal regulations governing the supply of regulating power from renewable energy sources. Since 1 January 2012, regulating power from renewable energy sources is provided within the scope of the EEG only by direct marketing, i.e. without receiving fixed reimbursement rates. Direct marketing is only possible outside the scope of the EEG, but this is without relevance for the time being. (orig.)

  3. "Las Retornadas" - Nach dem Exil: Dimensionen von Gemeinschaft und politischer Subjektivität in Erzählungen der Rückkehr

    OpenAIRE

    Kron, Stefanie

    2010-01-01

    Because of state repression, in the 1980th, around 100.000 - mostly - indigenous people fled their country Guatemala and passed more than 10 years of exile in the south of Mexico. 23000 of them returned in a selforganized and collective return movement (el retorno) during the 1990th to Guatemala. They were seen as a important pressure group for democratization and peace by international organizations as well as by social movementes and civil society in Guatemala. By using biographical me...

  4. Updated action plan for the implementation of measures as a consequence of the Fukushima reactor accident; Fortgeschriebener Aktionsplan zur Umsetzung von Massnahmen nach dem Reaktorunfall in Fukushima

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2016-03-15

    The updated German action plan for the implementation of measures as a consequence of the Fukushima reactor accident covers the following issues: decision on the future utilization of nuclear energy in Germany; national frame for security checks, inspections and measures for nuclear power plants; international frame for inspections; action plan and WENRA reference level; action plan for the implementation of measures form robustness enhancement in German nuclear power plants (SNC topics 1-3), action plan for implementation of further measures (CNS topics 4-6).

  5. International ETG Congress 2013. Energy supply en route to 2050. Proceedings; Internationaler ETG-Kongress 2013. Energieversorgung auf dem Weg nach 2050. Beitraege

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2013-07-01

    The present publication documents the contributions to the 2013 International Congress of the Energy Technology Society within the VDE from 5 to 6 November 2013 in Berlin. The congress was organised in six symposia dedicated respectively to ''Security in Critical Infrastructures Today'', ''System Design of Transmission Grids and Distribution Grids in the Context of the Energy Transition'', ''Power Electronics in Power Supply Systems'', ''New Applications and Development Trends in Contactless Energy Transmission'' and ''Research and Development for Electromobility'', all with a focus on the period up to the year 2050 and a programme taking due account of interactions between electricity supply systems and other energy infrastructures.

  6. The climate-problem. Evaluation after the Paris-agreement and the Marrakesh-conference; Das Klimaproblem. Bewertung nach dem Paris-Abkommen und der Marrakesch-Konferenz

    Energy Technology Data Exchange (ETDEWEB)

    Roth, Eike

    2017-05-15

    The Paris-Climate-Agreement came into effect on November 4th 2016. Still, the contradiction in this agreement - ambitious goals and (presumably) inadequate commitments - has persisted. Also in the follow-up conference in Marrakesh, this discrepancy remained unresolved. 2017 the countries will meet again. However, since Donald Trump became president-elect of the United States of America, uncertainty about how the largest economy in the world will act in the future has intensified. This amplifies the pressure to clarify the true level of human influence on the climate in a scientifically consistent manner, as a basis for more reliable decisions. This paper tries to contribute to that effort.

  7. Zoophilie in Zoologie und Roman: Sex und Liebe zwischen Mensch und Tier bei Plutarch, Plinius dem Älteren, Aelian und Apuleius

    Directory of Open Access Journals (Sweden)

    Judith Hindermann

    2011-09-01

    Full Text Available Die Bedeutung von Zoophilie in der antiken Literatur wurde bislang – mit Ausnahme des Mythos – kaum untersucht. Überblickt man die überlieferten literarischen Texte, fällt auf, dass Zoophilie ausserhalb des Mythos vor allem in zwei literarischen Gattungen auftritt : Einerseits in den zoologischen Schriften von Plutarch, Plinius dem Älteren und Aelian, andererseits im antiken Roman, d.h. in den Metamorphosen des Apuleius und im pseudo-lukianischen Onos. In diesem Beitrag soll untersucht werden, welche Funktion Zoophilie in den beiden literarischen Gattungen hat und wie die Autoren die sexuelle Praktik bewerten, die weder nach griechischem noch römischen Recht strafbar war. Da Vorstellungen über Tiere eng mit Gender und Geschlechterhierarchien verbunden sind, soll insbesondere die Frage berücksichtigt werden, inwiefern männliche und weibliche Verhaltens- und Rollenzuschreibungen bei der Darstellung zoophiler Akte wirksam werden.

  8. Standard Missile-6 (SM-6)

    Science.gov (United States)

    2016-12-01

    Cost Reporting U.S. - United States USD(AT&L) - Under Secretary of Defense (Acquisition, Technology and Logistics ) SM-6 December 2015 SAR March 17...Description 6 Executive Summary 7 Threshold Breaches 8 Schedule 9 Performance 11 Track to Budget 12 Cost and Funding 13 Low...Rate Initial Production 20 Foreign Military Sales 21 Nuclear Costs 21 Unit Cost 22 Cost Variance 25 Contracts 28 Deliveries and

  9. Absolute photoneutron cross sections of Sm isotopes

    Energy Technology Data Exchange (ETDEWEB)

    Gheorghe, I.; Glodariu, T. [National Institute for Physics and Nuclear Engineering Horia Hulubei, str. Atomistilor nr. 407 (Romania); Utsunomiya, H. [Department of Physics, Konan University, Okamoto 8-9-1, Higashinada, Kobe 658-8501 (Japan); Filipescu, D. [Extreme Light Infrastructure - Nuclear Physics, str. Atomistilor nr. 407, Bucharest-Magurele, P.O.BOX MG6 and National Institute for Physics and Nuclear Engineering Horia Hulubei, str. Atomistilor nr. 407 (Romania); Nyhus, H.-T.; Renstrom, T. [Department of Physics, University of Oslo, N-0316 Oslo (Norway); Tesileanu, O. [Extreme Light Infrastructure - Nuclear Physics, str. Atomistilor nr. 407, Bucharest-Magurele, P.O.BOX MG6 (Romania); Shima, T.; Takahisa, K. [Research Center for Nuclear Physics, Osaka University, Suita, Osaka 567-0047 (Japan); Miyamoto, S. [Laboratory of Advanced Science and Technology for Industry, University of Hyogo, 3-1-2 Kouto, Kamigori, Hyogo 678-1205 (Japan)

    2015-02-24

    Photoneutron cross sections for seven samarium isotopes, {sup 144}Sm, {sup 147}Sm, {sup 148}Sm, {sup 149}Sm, {sup 150}Sm, {sup 152}Sm and {sup 154}Sm, have been investigated near neutron emission threshold using quasimonochromatic laser-Compton scattering γ-rays produced at the synchrotron radiation facility NewSUBARU. The results are important for nuclear astrophysics calculations and also for probing γ-ray strength functions in the vicinity of neutron threshold. Here we describe the neutron detection system and we discuss the related data analysis and the necessary method improvements for adapting the current experimental method to the working parameters of the future Gamma Beam System of Extreme Light Infrastructure - Nuclear Physics facility.

  10. Biodegradable plastics in composting. Results of a practical experiment in the Bad Duerkheim district; Einsatz von biologisch abbaubaren Kunststoffen in der Kompostwirtschaft. Erkenntnisse und Erfahrungen aus dem Praxisversuch im Landkreis Bad Duerkheim

    Energy Technology Data Exchange (ETDEWEB)

    Pabst, Klaus [Abfallwirtschaftsbetrieb Landkreis Bad Duerkheim, Bad Duerkheim (Germany)

    2012-11-01

    For collecting biomass waste, about 65,000 households in the Bad Duerkheim district were given ten bags each of the compostable BASF plastic material Ecovio {sup registered} FS. The biomass waste collected in the Ecovio {sup registered} bags were composted in a composting plant. After the compost process, no residues of the Ecovio {sup registered} bags were found in the rotting, i.e. they are completely degradable. Neither the compost quality nor the working processes in the composting plant were affected, and there was no bigger volume of sorting residues. 90% of the users stated that they were satisfied with the new biomass waste bags. (orig.) [German] Fuer die Entsorgung des Bioabfalls erhielten rund 65.000 Haushalte aus dem Landkreis Bad Duerkheim je zehn Biomuelltuten aus dem kompostierbaren BASF-Kunststoff Ecovio {sup registered} FS. Die in diesen Ecovio {sup registered} -Tueten gesammelten Bioabfaelle wurden im Biokompostwerk zu Kompost verarbeitet. Nach dem Kompostierungsprozess konnten keine Reste der Ecovio {sup registered} -Folien mehr in der Rotte gefunden werden, und sie wurden vollstaendig biologisch abgebaut. Durch den Einsatz dieser Tueten wurden weder die Kompostqualitaet noch die Arbeitsablaeufe im Biokompostwerk beeintraechtigt. Eine Erhoehung der Sortierreste war nicht festzustellen. Im Rahmen einer Kundenbefragung aeusserten sich rund 90% zufrieden mit dem Einsatz dieser Biomuelltueten. (orig.)

  11. DETERMINING MINIMUM HIKING TIME USING DEM

    Directory of Open Access Journals (Sweden)

    ZSOLT MAGYARI-SÁSKA

    2012-11-01

    Full Text Available Determining minimum hiking time using DEM. Minimum hiking time calculus can be used to assess the maximum area where a lost person can be. Such area delimitation can help rescue teams to efficiently organize their missions. The two well known walking time rules was used to determine, compare and correlate the obtained result in a test area. The calculated times has a high correlation coefficient which makes possible a precise conversion between Naismith and Tobler walking times. For delimiting the rescue area a graph based modeling from a raster layer was implemented using R environment. The main challenge in such a modeling is the efficient memory management as the use of Dijkstra algorithm on directional costgraph requires high memory resources.

  12. DEM simulation of granular flows in a centrifugal acceleration field

    Science.gov (United States)

    Cabrera, Miguel Angel; Peng, Chong; Wu, Wei

    2017-04-01

    The main purpose of mass-flow experimental models is abstracting distinctive features of natural granular flows, and allow its systematic study in the laboratory. In this process, particle size, space, time, and stress scales must be considered for the proper representation of specific phenomena [5]. One of the most challenging tasks in small scale models, is matching the range of stresses and strains among the particle and fluid media observed in a field event. Centrifuge modelling offers an alternative to upscale all gravity-driven processes, and it has been recently employed in the simulation of granular flows [1, 2, 3, 6, 7]. Centrifuge scaling principles are presented in Ref. [4], collecting a wide spectrum of static and dynamic models. However, for the case of kinematic processes, the non-uniformity of the centrifugal acceleration field plays a major role (i.e., Coriolis and inertial effects). In this work, we discuss a general formulation for the centrifugal acceleration field, implemented in a discrete element model framework (DEM), and validated with centrifuge experimental results. Conventional DEM simulations relate the volumetric forces as a function of the gravitational force Gp = mpg. However, in the local coordinate system of a rotating centrifuge model, the cylindrical centrifugal acceleration field needs to be included. In this rotating system, the centrifugal acceleration of a particle depends on the rotating speed of the centrifuge, as well as the position and speed of the particle in the rotating model. Therefore, we obtain the formulation of centrifugal acceleration field by coordinate transformation. The numerical model is validated with a series of centrifuge experiments of monodispersed glass beads, flowing down an inclined plane at different acceleration levels and slope angles. Further discussion leads to the numerical parameterization necessary for simulating equivalent granular flows under an augmented acceleration field. The premise of

  13. Arc ASCII and GeoTiff DEMs of the North-Central California Coast (DEM_#_ASCII and DEM_#_GeoTIFF)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — A seamless, 2 meter resolution digital elevation model (DEM) was constructed for the open-coast region of the San Francisco Bay Area (outside of the Golden Gate...

  14. Arc ASCII and GeoTiff DEMs of the North-Central California Coast (DEM_#_ASCII and DEM_#_GeoTIFF)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — A seamless, 2 meter resolution digital elevation model (DEM) was constructed for the open-coast region of the San Francisco Bay Area (outside of the Golden Gate...

  15. Which DEM is the best for glaciology? -Evaluation of global-scale DEM products-

    Science.gov (United States)

    Nagai, Hiroto; Tadono, Takeo

    2017-04-01

    Digital elevation models (DEMs) are fundamental geospatial data to study glacier distribution, changes, dynamics, mass balance and various geomorphological conditions. This study evaluates latest global-scale free DEMs in order to clarify their superiority and inferiority in glaciological uses. Three DEMs are now available; the 1-arcsec. product obtained from the Shuttle Radar Topographic Mission (SRTM1), the second version of Global Digital Elevation Model of the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER GDEM2), and the first resampled dataset acquired by the Advanced Land observing Satellite, namely ALOS World 3D-30m (AW3D30). These DEMs have common specifications of global coverage (B>C). In the Tone river basin, SRTM1 has equivalent accuracy to AW3D30. High resolution (2.5 m) of the original stereo-pair images for AW3D30 (i.e. ALOS PRISM imagery) contributes for the best absolute accuracy. Glaciers on rather flat terrains are usually distributed in higher latitude (e.g. Antarctica and Greenland), where SRTM1 is unable. Glaciers at mid-to-low latitudes glaciers are usually distributed in high and steep mountains, where SRTM1 has lower accuracy than AW3D30. AW3D30 would contributes as a preferable option for glaciology in a global scale. At the tops of high mountains in the Nepal Himalaya, however, AW3D30 has a large area of data missing due to snow cover. This inferiority should be improved by filling with other datasets in the next version. ASTER GDEM2 has less area of data missing in the Nepal Himalaya, which would contribute for coarse uses such as generation of river basin, brief drawing of a topographic map, etc.

  16. BlazeDEM3D-GPU A Large Scale DEM simulation code for GPUs

    Science.gov (United States)

    Govender, Nicolin; Wilke, Daniel; Pizette, Patrick; Khinast, Johannes

    2017-06-01

    Accurately predicting the dynamics of particulate materials is of importance to numerous scientific and industrial areas with applications ranging across particle scales from powder flow to ore crushing. Computational discrete element simulations is a viable option to aid in the understanding of particulate dynamics and design of devices such as mixers, silos and ball mills, as laboratory scale tests comes at a significant cost. However, the computational time required to simulate an industrial scale simulation which consists of tens of millions of particles can take months to complete on large CPU clusters, making the Discrete Element Method (DEM) unfeasible for industrial applications. Simulations are therefore typically restricted to tens of thousands of particles with highly detailed particle shapes or a few million of particles with often oversimplified particle shapes. However, a number of applications require accurate representation of the particle shape to capture the macroscopic behaviour of the particulate system. In this paper we give an overview of the recent extensions to the open source GPU based DEM code, BlazeDEM3D-GPU, that can simulate millions of polyhedra and tens of millions of spheres on a desktop computer with a single or multiple GPUs.

  17. Sierra/SM theory manual.

    Energy Technology Data Exchange (ETDEWEB)

    Crane, Nathan Karl

    2013-07-01

    Presented in this document are the theoretical aspects of capabilities contained in the Sierra/SM code. This manuscript serves as an ideal starting point for understanding the theoretical foundations of the code. For a comprehensive study of these capabilities, the reader is encouraged to explore the many references to scientific articles and textbooks contained in this manual. It is important to point out that some capabilities are still in development and may not be presented in this document. Further updates to this manuscript will be made as these capabilites come closer to production level.

  18. Modeling Glacier Elevation Change from DEM Time Series

    Directory of Open Access Journals (Sweden)

    Di Wang

    2015-08-01

    Full Text Available In this study, a methodology for glacier elevation reconstruction from Digital Elevation Model (DEM time series (tDEM is described for modeling the evolution of glacier elevation and estimating related volume change, with focus on medium-resolution and noisy satellite DEMs. The method is robust with respect to outliers in individual DEM products. Fox Glacier and Franz Josef Glacier in New Zealand are used as test cases based on 31 Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER DEMs and the Shuttle Radar Topography Mission (SRTM DEM. We obtained a mean surface elevation lowering rate of −0.51 ± 0.02 m·a−1 and −0.09 ± 0.02 m·a−1 between 2000 and 2014 for Fox and Franz Josef Glacier, respectively. The specific volume difference between 2000 and 2014 was estimated as −0.77 ± 0.13 m·a−1 and −0.33 ± 0.06 m·a−1 by our tDEM method. The comparably moderate thinning rates are mainly due to volume gains after 2013 that compensate larger thinning rates earlier in the series. Terminus thickening prevailed between 2002 and 2007.

  19. Können die Parameter Dauerkatheter-Liegezeit, postoperatives Miktionsvolumen und Prostatagewicht als Parameter zur Vorhersage der Kontinenzwahrscheinlichkeit nach endoskopischer, extraperitonealer radikaler Prostatektomie dienen?

    OpenAIRE

    Sehovic M; Sankowski N; Lermer J; Weiser R

    2010-01-01

    Die Kontinenzergebnisse nach den verschiedenen Verfahren der radikalen Prostatektomie zeigen bei entsprechender Erfahrung der Operateure keine Unterschiede und erreichen je nach Definition Raten bis zu 90 %. Es sollen deshalb unabhängige Parameter auf ihre Wertigkeit zur Abschätzung der Kontinenzwahrscheinlichkeit nach EERPE untersucht werden, um die Kontinenzraten verfahrensunabhängig optimieren zu können. Zur Erfassung der Kontinenzraten wird den Patienten jeweils 3, 6 und 12 Mona...

  20. Späte Seed-Migration nach LDR-Brachytherapie der Prostata mit I125-Permanentimplantaten

    Directory of Open Access Journals (Sweden)

    Maletzki P

    2015-01-01

    Full Text Available Hintergrund: Nach einer „Lowdose-rate“- (LDR Brachytherapie der Prostata kommt es häufig zu einer Seed-Migration. Trotz mehrerer Arbeiten über eine Seed-Migration in der frühen postoperativen Phase nach Seed-Implantation gibt es bisher nur wenige Daten über eine Seed-Migration mehrere Jahre nach erfolgter Intervention. Unser Ziel war eine Datenerhebung zur Inzidenz, Lokalisation, Symptomatik und therapeutischen Konsequenz einer späten Seed-Migration 3 Jahre nach Seed-Implantation. Methoden: Wir untersuchten retrospektiv 63 unselektionierte Patienten, die mittels transrektaler, Ultraschall-gesteuerter, transperinealer interstitieller LDR-Brachytherapie der Prostata zwischen 2001 und 2010 behandelt wurden. Es wurden hierbei verknüpfte („stranded“ Seeds verwendet. Am ersten Tag nach der Intervention erfolgte eine Symphysenzielaufnahme und 6 Wochen postoperativ eine erneute Symphysenzielaufnahme in Kombination mit einem CT/MRI des Beckens mit Bildfusionstechnik zur dosimetrischen Untersuchung. Die radiologische Spätkontrolle wurde mehr als 3 Jahre postoperativ mittels einer Symphysenzielaufnahme und eines Thorax-Röntgens durchgeführt. Ergebnisse: Mehr als 3 Jahre nach Brachytherapie zeigten 36 der 63 Patienten (57 % einen Seed-Verlust. Die Anzahl fehlender Seeds lag zwischen 1 und 9. Neben einer frühen Seed-Migration zeigte sich eine späte Seed-Migration bei 2 der 36 Patienten (6 % mit Migration in die Lunge, Leber und das kleine Becken. Alle Spätmigrationen waren asymptomatisch und ohne therapeutische Konsequenz. Diskussion: Neben häufig auftretenden Seed-Verlusten scheint eine Seed-Migration mehrere Jahre nach erfolgter Implantation eine seltene Erscheinung zu sein. Langzeitkontrollen mit ergänzenden radiologischen Nachuntersuchungen könnten dennoch hilfreich zur Dokumentation einer relevanten Seed-Migration sein.

  1. Hydraulic fracturing - an attempt of DEM simulation

    Science.gov (United States)

    Kosmala, Alicja; Foltyn, Natalia; Klejment, Piotr; Dębski, Wojciech

    2017-04-01

    Hydraulic fracturing is a technique widely used in oil, gas and unconventional reservoirs exploitation in order to enable the oil/gas to flow more easily and enhance the production. It relays on pumping into a rock a special fluid under a high pressure which creates a set of microcracks which enhance porosity of the reservoir rock. In this research, attempt of simulation of such hydrofracturing process using the Discrete Element Method approach is presented. The basic assumption of this approach is that the rock can be represented as an assembly of discrete particles cemented into a rigid sample (Potyondy 2004). An existence of voids among particles simulates then a pore system which can be filled out by fracturing fluid, numerically represented by much smaller particles. Following this microscopic point of view and its numerical representation by DEM method we present primary results of numerical analysis of hydrofracturing phenomena, using the ESyS-Particle Software. In particular, we consider what is happening in distinct vicinity of the border between rock sample and fracking particles, how cracks are creating and evolving by breaking bonds between particles, how acoustic/seismic energy is releasing and so on. D.O. Potyondy, P.A. Cundall. A bonded-particle model for rock. International Journal of Rock Mechanics and Mining Sciences, 41 (2004), pp. 1329-1364.

  2. Substancinė Dievo formos kaita kaip meninė Visybės reprezentacija (pagal Thomo Manno romaną Juozapas ir jo broliai | Substanziales Werden der Form Gottes als künstleriche Repräsentation des Ganzen (nach der Tetralogie Joseph und seine Brüder von Thomas Mann

    Directory of Open Access Journals (Sweden)

    Juldita Nagliuvienė

    2004-01-01

    Full Text Available Anhand der Polemik zwischen der Totalitätsphänomenologie von Emmanuel Lévinas und der Selbstphänomenologie von Ernst Bloch werden in diesem Artikel die Erscheinungen Gottes, mit denen sich das patriarchalische Subjekt in die Beziehung eingetreten ist, analysiert. Vor allem aktualisiert man den substanziellen Inhalt der künstlerichen Gottesform, deren Wurzeln in der primitiven archaischen Ikonographie der Babylonier und der Ägypter liegen. Das Bild Gottes verwandelt sich in der Situation der Begegnung aus der Substanz des unförmigen Steines, die pfallische Intentionen des Helden akzentuiert, in die symbiotische Form eines Menschentieres (oder Gottes-Tieres, das als Fremde Gott auf der Ebene der Erzählung funktioniert und den Numenaspekt durch die künstliche Form der animalischen Gottheit in sich trägt. Durch die Maske des Tieres strebt der göttliche Begegnungspartner, der das Werden Gottes aktualisiert, nach der Verwandlung in die Gestalt eines sterbenden und wieder auferstehenden Menschen-Gottes, der den sündigen Menschen erlösen kann. In der Tetralogie von Thomas Mann existiert diese Ebene des Nochnicht-gewordenen-Gottes als utopische Stufe der vollkommenen Beziehungen zwischen Mensch und Gott. Die Begegnung zwischen dem tierischen Gott und dem Helden geschieht im Roman in der Traumsphäre, die den Dialog zwischen dem Kunstding und dem Menschen möglich macht. Auf der Traumebene wird der Prozess der Metamorphose einer Gottheit dargestellt, aber sie erscheint als ein schon verwandeltes Wesen, das die Antropomorphie des Erlösungsprinzips aufnimmt, und dem Helden erst im bewussten Zustand begegnet.

  3. Amery ice shelf DEM and its marine ice distribution

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    The Amery Ice Shelf is the largest ice shelf in East Antarctica. A new DEM was generated for this ice shelf, using kriging to interpolate the data from ICESat altimetry and the AIS-DEM. The ice thickness distribution map is converted from the new DEM, assuming hydrostatic equilibrium. The Amery Ice Shelf marine ice, up to 230 m thick, is concentrated in the northwest of the ice shelf. The volume of the marine ice is 2.38×103 km3 and accounts for about 5.6% of the shelf volume.

  4. Acidente vascular cerebral e demência vascular no idoso

    OpenAIRE

    Ionel, Cristina

    2015-01-01

    Trabalho final de mestrado integrado em Medicina, apresentado à Faculdade de Medicina da Universidade de Coimbra. Em consequência de um fenómeno global de envelhecimento populacional, é expectável um aumento na prevalência de demência. A demência vascular é a segunda causa mais comum de demência, depois da doença de Alzheimer. Trata-se de uma entidade clínica bastante heterogénea, sendo o acidente vascular cerebral (AVC) um dos seus mecanismos subjacentes. No entanto, nem todos os doentes ...

  5. Erfolg in Serie? Zeitungsbibliotheken auf dem deutschen Buchmarkt

    OpenAIRE

    Schlusche, Sonja

    2007-01-01

    Der deutsche Buchmarkt ist in Bewegung. In diesem traditionellen Sektor der Wirtschaft ist steigende wirtschaftliche Effizienz gefragt. Neue Impulse kommen auch vom Nachrichtenjournalismus, welcher ein neuer Teilnehmer der Publikation von Büchern oder buchähnlichen Produkten ist. Aufgrund einer wirtschaftlichen und strukturellen Krise nach der Jahrtausendwende waren die Nachrichtenverlage gezwungen neue Initiativen umzusetzen und neue Strategien zur Kompensation ihrer Verkaufsrückgänge zu en...

  6. Early alterations in the hip joint following epiphysiolysis for slipped femoral head. Results of an MRI study; Fruehveraenderugen im Hueftgelenk nach Epiphysiolysis capitis femoris. MRT-Untersuchungsergebnisse

    Energy Technology Data Exchange (ETDEWEB)

    Stoever, B. [Freiburg Univ. (Germany). Radiologische Klinik; Sigmund, G. [Freiburg Univ. (Germany). Radiologische Klinik; Huhle, P. [Freiburg Univ. (Germany). Orthopaedische Abteilung; Zwack, P. [Freiburg Univ. (Germany). Orthopaedische Abteilung; Reichert, A. [Freiburg Univ. (Germany). Orthopaedische Abteilung; Langer, M. [Freiburg Univ. (Germany). Radiologische Klinik

    1994-01-01

    With the aim of detecting patients at risk of developing coxarthritis, 34 patients were investigated prospectively by MRI 6-14 years after epiphysiolysis for slipped capital femoral head. In particular, cartilage changes were analysed by gradient-echo sequences. In 40% of the hip joints investigated cartilaginous lesions were present, detectable as irregularity and flattening of contour and more rarely as changes in signal intensity. In contrast, only 18% of the radiographs available revealed any pathology. When pelvic X-rays are normal or reveal slight sclerosis, cartilaginous lesions on MRI are considered early signs of coxarthrosis. This combination was seen especially often in patients with a primarily high angle of dislocation and in those who needed treatment by reposition or osteotomy. Only in 8 of the 17 hip joints showing sclerosis on conventional radiograms, sclerosis was also diagnosed by MRI, possibly because of partial volume and susceptibility effects at high field strength. Even with limited spatial resolution, cartilage examinations is warranted in young patients in whom early osteoarthritis can be expected. (orig.) [Deutsch] Mit dem Ziel, Veraenderungen am Hueftgelenk bei Patienten mit Arthroserisiko rechtzeitig zu erfassen, wurden 34 Patienten 6-14 Jahre nach einer Epiphysiolysis capitis femoris mittels MRT im Hochfeld bei 2/T nachuntersucht. Insbesondere sollten anhand der `FLASH`-Gradientenechosequenzen Knorpelveraenderungen analysiert werden. In 40% der untersuchten Hueftgelenke lagen Knorpellaesionen vor, sichtbar als Verduennung der Knorpelschicht, Konturunregelmaessigkeit und seltener als Signalintensitaetsveraenderungen. Dagegen waren nur 18% der vorhandenen Roentgenbefunde eindeutig pathologisch. Die kernspintomographisch sichtbaren Laesionen des Knorpels sind bei normalem Roentgenbild als Fruehveraenderungen zu werten und waren haeufiger bei Patienten mit primaer hohem Dislokationswinkel nachweisbar wie auch bei Patienten, bei denen eine

  7. VT Lidar DEM (3.2 meter) - 2004 - Chittenden

    Data.gov (United States)

    Vermont Center for Geographic Information — (Link to Metadata) This metadata applies to the following collection area(s): Chittenden County 2004 3.2m and Digital Elevation Model (DEM) datasets of various...

  8. VT Lidar Hydro-flattened DEM (2 meter) - 2012 - Bennington

    Data.gov (United States)

    Vermont Center for Geographic Information — (Link to Metadata) This metadata applies to the following collection area(s): Bennington County 2012 2.0m and Digital Elevation Model (DEM) datasets of various...

  9. Digital Elevation Models (DEMs) for the main 8 Hawaiian Islands

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digital elevation model (DEM) data are arrays of regularly spaced elevation values referenced horizontally either to a Universal Transverse Mercator (UTM)...

  10. Digital Elevation Models (DEMs) for the main 8 Hawaiian Islands

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digital elevation model (DEM) data are arrays of regularly spaced elevation values referenced horizontally either to a Universal Transverse Mercator (UTM) projection...

  11. Orthorectification of IKONOS and Impact of Different Resolution DEM

    Institute of Scientific and Technical Information of China (English)

    XU Junfeng; HUANG Jingfeng

    2006-01-01

    IKONOS image has been wildly used in city planning, precision agriculture and emergence response. However, the accuracy of IKONOS Geo product is limited due to distortion caused by terrain relief. Orthorectification was performed to remove the distortion and the impact of different DEM on orthorectification were evaluated. 38 ground control points (GCPs) and 25 independent check points (ICPs) were collected. DEMs were generated from 1∶10 000 and 1∶50 000 topographic maps. Results show that RMS error at the check points is 1.554 0 m using DEM generated from 1∶10 000 topographic map, which can meet the accuracy requirement of IKONOS Precision product (1.9 m RMSE). While RMS error is 2.572 4 m using DEM generated from 1∶50 000 topographic map.

  12. ElevationDEM_DEMHF0p7M2014

    Data.gov (United States)

    Vermont Center for Geographic Information — This metadata applies to the following collection area(s): Eastern VT 2014 0.7m and Digital Elevation Model (DEM) dataset of the following "hydro-treatment": *DEMHF....

  13. VT USGS NED Hydro-flattened DEM (30 meter) - statewide

    Data.gov (United States)

    Vermont Center for Geographic Information — (Link to Metadata) VTHYDRODEM was created to produce a "hydrologically correct" DEM, compliant with the Vermont Hydrography Dataset (VHD) in support of the "flow...

  14. Digital Elevation Model (DEM), Published in 2007, City of Dubuque.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Digital Elevation Model (DEM) dataset, was produced all or in part from Orthoimagery information as of 2007. Data by this publisher are often provided in State...

  15. Imaging of postarthroscopic complications after knee injuries; Bildgebung postarthroskopischer Komplikationen nach Knieverletzungen

    Energy Technology Data Exchange (ETDEWEB)

    Schueller-Weidekamm, C. [Medizinische Universitaet Wien, Abteilung fuer Neuroradiologie und muskuloskelettale Radiologie, Klinik fuer Radiodiagnostik, Wien (Austria); Skrbensky, G. von [Medizinische Universitaet Wien, Klinik fuer Orthopaedie, Wien (Austria)

    2012-11-15

    The most common joint injuries in professional and recreational sports participants and also in the total population are knee injuries. Arthroscopy is indicated if this modality will improve the patient outcome and potential long-term complications can be avoided. Although uncommon, complications following arthroscopy are mostly evaluated by magnetic resonance imaging (MRI). For planning further therapy strategies following postarthroscopic complications, e.g. if anterior cruciate ligament (ACL) reconstruction is required, digital radiographs and computed tomography (CT) are helpful. This article provides an overview of the different procedures for surgical treatment which are a prerequisite for the analysis of postarthroscopic images. In addition typical complications after treatment of meniscal and chondral injuries as well as after ACL reconstruction are described and typical signs in MRI, radiography and CT are explained in detail. (orig.) [German] Kniegelenkverletzungen sind nicht nur bei Profisportlern, sondern auch in der Gesamtbevoelkerung die haeufigsten Gelenkverletzungen. Die Indikation zur arthroskopischen Operation wird gestellt, wenn im Vergleich zur konservativen Therapie ein besseres Ergebnis postarthroskopisch zu erwarten ist und potenzielle Spaetkomplikationen verhindert werden koennten. Die selten aber dennoch auftretenden postarthroskopischen Komplikationen werden zumeist mit der Magnetresonanztomographie (MRT) abgeklaert. Zur weiteren Therapieplanung nach Komplikationen, z. B. wenn eine Kreuzbandrevision notwendig ist, sind die digitale Projektionsradiographie und die Computertomographie (CT) hilfreich. Dieser Artikel bietet eine kurze Uebersicht ueber die unterschiedlichen Operationstechniken, die eine Voraussetzung fuer das Verstaendnis der bildgebenden postoperativen Veraenderungen sind. Weiter wird auf die haeufigsten Komplikationen nach Meniskus- und Knorpeloperationen sowie nach vorderer Kreuzbandrekonstruktion und den damit

  16. Prävention und Rehabilitation nach radikaler Prostatektomie - Teil II: Harninkontinenz

    Directory of Open Access Journals (Sweden)

    Müller C

    2010-01-01

    Full Text Available Die Harninkontinenz als Komplikation der radikalen Prostatektomie ist zwar in den vergangenen Jahrzehnten zunehmend seltener geworden, für die betroffenen Patienten stellt sie aber eine wesentliche Beeinträchtigung der Lebensqualität dar. Das Alter des Patienten zum Zeitpunkt des Eingriffs ist ein naturgemäß nicht beeinflussbarer Risikofaktor. Als präventive Maßnahmen kommen Veränderungen des Lebensstils, Meiden bestimmter Risikofaktoren, das präoperative Beckenbodentraining zur Optimierung der präoperativen Kontinenz sowie präventive und therapeutische Maßnahmen zur Verbesserung der präoperativen Potenz infrage. Während die anlagebedingte Länge der Urethra und die Größe der Prostata naturgemäß vorgegeben sind, lässt sich die Prävalenz der Harninkontinenz nach radikaler Prostatektomie durch schonende Operationstechniken und durch die intraoperative Hypothermie reduzieren. Darüber hinaus gibt es eine Reihe rehabilitativer Maßnahmen, speziell das postoperative Beckenbodentraining, elektrische Beckenbodenstimulation, Magnetfeldtherapie und erste pharmakologische Ansätze. Auch die Rehabilitation der postoperativen erektilen Funktion kann sich günstig auf die Kontinenz auswirken. Obwohl die Studienlage für die Wirksamkeit der einzelnen Maßnahmen nach den Kriterien der evidenzbasierten Medizin insgesamt insuffizient ist, zeigt die in den vergangenen Jahrzehnten abnehmende Prävalenz der Harninkontinenz nach radikaler Prostatektomie, dass die oben genannten Maßnahmen gemeinsam angewandt außerordentlich wirksam sind.

  17. High-resolution DEM Effects on Geophysical Flow Models

    Science.gov (United States)

    Williams, M. R.; Bursik, M. I.; Stefanescu, R. E. R.; Patra, A. K.

    2014-12-01

    Geophysical mass flow models are numerical models that approximate pyroclastic flow events and can be used to assess the volcanic hazards certain areas may face. One such model, TITAN2D, approximates granular-flow physics based on a depth-averaged analytical model using inputs of basal and internal friction, material volume at a coordinate point, and a GIS in the form of a digital elevation model (DEM). The volume of modeled material propagates over the DEM in a way that is governed by the slope and curvature of the DEM surface and the basal and internal friction angles. Results from TITAN2D are highly dependent upon the inputs to the model. Here we focus on a single input: the DEM, which can vary in resolution. High resolution DEMs are advantageous in that they contain more surface details than lower-resolution models, presumably allowing modeled flows to propagate in a way more true to the real surface. However, very high resolution DEMs can create undesirable artifacts in the slope and curvature that corrupt flow calculations. With high-resolution DEMs becoming more widely available and preferable for use, determining the point at which high resolution data is less advantageous compared to lower resolution data becomes important. We find that in cases of high resolution, integer-valued DEMs, very high-resolution is detrimental to good model outputs when moderate-to-low (<10-15°) slope angles are involved. At these slope angles, multiple adjacent DEM cell elevation values are equal due to the need for the DEM to approximate the low slope with a limited set of integer values for elevation. The first derivative of the elevation surface thus becomes zero. In these cases, flow propagation is inhibited by these spurious zero-slope conditions. Here we present evidence for this "terracing effect" from 1) a mathematically defined simulated elevation model, to demonstrate the terracing effects of integer valued data, and 2) a real-world DEM where terracing must be

  18. Neues aus dem Forschungsfeld Deutsch als Zweitsprache. Sammelrezension

    Directory of Open Access Journals (Sweden)

    Claus Altmayer

    2015-03-01

    Full Text Available Neues aus dem Forschungsfeld Deutsch als Zweitsprache. Sammelrezension (Teil 2 von Bernt Ahrenholz (Hrsg. (2009, Empirische Befunde zu DaZ-Erwerb und Sprachförderung. Beiträge aus dem 3. ‚Workshop Kinder mit Migrationshintergrund‘; Karen Schramm & Christoph Schröder (Hrsg. (2009, Empirische Zugänge zu Spracherwerb und Sprachförderung in Deutsch als Zweitsprache; Stefan Jeuk (2010, Deutsch als Zweitsprache in der Schule. Grundlagen - Diagnose – Förderung

  19. DEM error retrieval by analyzing time series of differential interferograms

    OpenAIRE

    Bombrun, Lionel; Gay, Michel; Trouvé, Emmanuel; Vasile, Gabriel; Mars, Jerome,

    2009-01-01

    International audience; 2-pass Differential Synthetic Aperture Radar Interferometry (D-InSAR) processing have been successfully used by the scientific community to derive velocity fields. Nevertheless, a precise Digital Elevation Model (DEM) is necessary to remove the topographic component from the interferograms. This letter presents a novel method to detect and retrieve DEM errors by analyzing time series of differential interferograms. The principle of the method is based on the comparison...

  20. 4G5G-Polymorphismus des PAI-1-Genes und Restenoserisiko nach koronarer Stentimplantation

    OpenAIRE

    Lahn, Christina

    2005-01-01

    In dieser Studie wurde der 4G5G-Polymorphismus des PAI-1 von 1850 Patienten mit koronarer Stentimplantation, bei denen nach 6 Monaten eine angiographische Kontrolluntersuchung erfolgte und das klinische Follow-up über 1 Jahr erhoben wurde, evaluiert. Untersucht wurde, ob der Insertions-Deletions-Polymorphismus in der Promotorregion des PAI-1-Genes einen Einfluss auf die Instent-Restenose hat. Die 4G-Allel-Frequenz betrug 0,56. 32,5 % der für das 4G-Allel homozygoten Patienten entwickelten ein...

  1. Asymptomatische zerebrale Mikroembolien nach Lungenvenenablation unter therapeutischer Antikoagulation bei Patienten mit Vorhofflimmern

    Directory of Open Access Journals (Sweden)

    Sigmund E

    2013-01-01

    Full Text Available Einleitung: Patienten nach Pulmonalvenenisolation (PVI bei Vorhofflimmern (VHF zeigen eine erhöhte Inzidenz für asymptomatische zerebrale Mikroembolien. Ziel unserer Untersuchung war es, erstmals unter laufender therapeutischer oraler Antikoagulation die Häufigkeit dieser Läsionen aufzuzeigen. Zur Veranschaulichung dieser Ereignisse wurde jeweils vor und nach linksatrialer Ablationsbehandlung eine diffusionsgewichtete zerebrale Magnetresonanztomographie (DW-MRT durchgeführt und zudem relevante klinische und prozedurale Parameter dokumentiert. Methodik: Insgesamt wurden 80 konsekutive Patienten mit paroxysmalem (n = 52; 65,0 % oder persistierendem VHF (n = 28; 35,0 % im Rahmen dieser Pilotstudie einer linksatrialen Radiofrequenzablation unterzogen. Bei Patienten mit persistierendem VHF erfolgten zusätzlich zur PVI lineare Ablationen (Dachlinie, mitrale Isthmuslinie und/oder CFAE-Ablation („complex fractionated atrial electrograms“ mit einem 3,5 mm offen gekühlten Ablationskatheter. Präund postinterventionell wurde bei allen Patienten ein zerebrales MRT durchgeführt. Ergebnisse: Nach PVI konnten bei 13 von 80 Patienten (16,3 % neu aufgetretene mikroembolische zerebrale Läsionen nachgewiesen werden. Alle Patienten waren neurologisch völlig asymptomatisch. Einziger signifikanter klinischer Parameter in der univarianten Analyse, welcher eine Korrelation dieser Läsionen zeigte, war die Art des VHF (5/52 paroxysmal – 9,6 % vs. 8/28 persistierend – 28,6 %; p = 0,033. Signifikante periprozedurale Parameter waren die Durchführung einer elektrischen Kardioversion im Rahmen der Ablationsbehandlung (p = 0,009 sowie die CFAE-Ablation (p = 0,05. In der multivarianten Analyse zeigte lediglich die Elektrokardioversion einen Trend zur Signifikanz mit 3,98-fachem Risiko (95 %-CI: 0,83–19; p = 0,08. Schlussfolgerung: Auch unter kontinuierlicher therapeutischer Antikoagulation konnte die Inzidenz zerebraler Mikroembolien nach Lungenvenenablation im

  2. Distinguishing a SM-like MSSM Higgs boson from SM Higgs boson at muon collider

    Indian Academy of Sciences (India)

    Jai Kumar Singhal; Sardar Singh; Ashok K Nagawat

    2007-06-01

    We explore the possibility of distinguishing the SM-like MSSM Higgs boson from the SM Higgs boson via Higgs boson pair production at future muon collider. We study the behavior of the production cross-section in SM and MSSM with Higgs boson mass for various MSSM parameters tan and A. We observe that at fixed CM energy, in the SM, the total cross-section increases with the increase in Higgs boson mass whereas this trend is reversed for the MSSM. The changes that occur for the MSSM in comparison to the SM predictions are quantified in terms of the relative percentage deviation in cross-section. The observed deviations in cross-section for different choices of Higgs boson masses suggest that the measurements of the cross-section could possibly distinguish the SM-like MSSM Higgs boson from the SM Higgs boson.

  3. On the role of Sm in solidification of Al-Sm metallic glasses

    CERN Document Server

    Bokas, G B; Perepezko, J H; Szlufarska, I

    2016-01-01

    During the solidification of Al-Sm metallic glasses the evolution of the supercooled liquid atomic structure has been identified with an increasing population of icosahedral-like clusters with increasing Sm concentration. These clusters exhibit slower kinetics compared to the remaining clusters in the liquid leading to enhanced amorphous phase stability and glass forming ability (GFA). Maximum icosahedral-ordering and atomic packing density have been found for the Al90Sm10 and Al85Sm15 alloys, respectively, whereas minimum cohesive energy has been found for the Al93Sm7 which is consistent with the range of compositions (from Al92Sm8 to Al84Sm16) found experimentally with high GFA.

  4. Input Data Boundary Outlines for DEMs of the North-Central California Coast (DEM_source_data.shp)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — A GIS polygon shapefile outlining the boundaries of the native input datasets used to construct a seamless, 2-meter resolution digital elevation model (DEM) was...

  5. Einmaliges studentisches standardisiertes Training der chirurgischen Händedesinfektion nach EN1500: Quantifizierung des Trainingseffektes, Nutzen der Methode und Vergleich mit klinischen Referenzgruppen [A single standardized practical training for surgical scrubbing according to EN1500: Effect Quantification, value of the standardized method and comparison with clinical reference groups

    Directory of Open Access Journals (Sweden)

    Wullenk, Katharina

    2013-05-01

    Studierende der Medizin eines 8. Semesters wurden in Kontroll- und Interventionsgruppe randomisiert. Die Interventionsgruppe erhielt ein 45-minütiges standardisiertes Training durch geschulte Mitstudierende zum Verhalten im OP mit dem Teilaspekt der chirurgischen Händedesinfektion nach EN1500. Dem Desinfektionsmittel wurde Fluoreszenzfarbstoff beigemischt. Nach der Desinfektion wurden die 4 Handflächen eines jeden Probanden digital fotografiert und teilautomatisiert die nicht ausreichend benetzte Handfläche bestimmt. Die Ergebnisse aller studentischer Probanden wurden verglichen, sowie das Kompetenzniveau anhand zweier klinischer Referenzgruppen eingeordnet.Ergebnisse: Die Interventionsgruppe erreichte nach dem studentisch angeleiteten Training eine zu durchschnittlich 4,99% (SD 2,34 der gesamten vier Handflächen nicht sicher ausreichende Benetzung und war damit hoch signifikant (p<0,01 besser als die Kontrollgruppe mit 7,33% (SD 3,91. Im Vergleich zu den Referenzgruppen konnte in der Kontrollgruppe kein signifikanter Unterschied gezeigt werden, die Interventionsgruppe zeigte aber im Vergleich zu beiden Referenzgruppen hoch signifikant bessere Ergebnisse: Operateure 9,32% (SD 4,97, OP-Pflege 8,46% (SD 4,66. Der Methodenfehler ist vernachlässigbar gering. In der Subgruppenanalyse hinsichtlich der studentischen Vorerfahrungen zeigten sich gute Trainingseffekte in den Gruppen mit geringer und moderater Vorerfahrung, weniger in den Gruppen ohne bzw. mit großer Vorerfahrung. Alle Probanden zeigten die größten Benetzungslücken an den Handrücken im Vergleich zu den Handflächen.Diskussion: Ein einmaliges standardisiertes, studentisch angeleitetes Training der Einreibemethode EN1500 ist geeignet, die Benetzungslücken der Teilnehmer nach der chirurgischen Händedesinfektion um ein Drittel zu reduzieren und gleichzeitig das Kompetenzniveau klinischer Referenzgruppen von OP-Pflege und Operateuren zu erreichen oder gar zu übertreffen.

  6. Cs3Sm7Se12

    Directory of Open Access Journals (Sweden)

    Christof Schneck

    2012-01-01

    Full Text Available The title compound, tricaesium heptasamarium(III dodecaselenide, is setting a new starting point for realization of the channel structure of the Cs3M7Se12 series, now with M = Sm, Gd–Er. This Cs3Y7Se12-type arrangement is structurally based on the Z-type sesquiselenides M2Se3 adopting the Sc2S3 structure. Thus, the structural set-up of Cs3Sm7Se12 consists of edge- and vertex-connected [SmSe6]9− octahedra [dØ(Sm3+ – Se2− = 2.931 Å], forming a rock-salt-related network [Sm7Se12]3− with channels along [001] that are apt to take up monovalent cations (here Cs+ with coordination numbers of 7 + 1 for one and of 6 for the second cation. The latter cation has a trigonal–prismatic coordination and shows half-occupancy, resulting in an impossible short distance [2.394 (4 Å] between symmetrically coupled Cs+ cations of the same kind. While one Sm atom occupies Wyckoff position 2b with site symmetry ..2/m, all other 11 crystallographically different atoms (namely 2 × Cs, 3 × Sm and 6 × Se are located at Wyckoff positions 4g with site symmetry ..m.

  7. Cs(3)Sm(7)Se(12).

    Science.gov (United States)

    Schneck, Christof; Elbe, Andreas; Schurz, Christian M; Schleid, Thomas

    2012-01-01

    The title compound, tricaesium hepta-samarium(III) dodeca-selenide, is setting a new starting point for realization of the channel structure of the Cs(3)M(7)Se(12) series, now with M = Sm, Gd-Er. This Cs(3)Y(7)Se(12)-type arrangement is structurally based on the Z-type sesquiselenides M(2)Se(3) adopting the Sc(2)S(3) structure. Thus, the structural set-up of Cs(3)Sm(7)Se(12) consists of edge- and vertex-connected [SmSe(6)](9-) octa-hedra [d(Ø)(Sm(3+) - Se(2-)) = 2.931 Å], forming a rock-salt-related network [Sm(7)Se(12)](3-) with channels along [001] that are apt to take up monovalent cations (here Cs(+)) with coordination numbers of 7 + 1 for one and of 6 for the second cation. The latter cation has a trigonal-prismatic coordination and shows half-occupancy, resulting in an impossible short distance [2.394 (4) Å] between symmetrically coupled Cs(+) cations of the same kind. While one Sm atom occupies Wyckoff position 2b with site symmetry ..2/m, all other 11 crystallographically different atoms (namely 2 × Cs, 3 × Sm and 6 × Se) are located at Wyckoff positions 4g with site symmetry ..m.

  8. 23Na-Magnetresonanzspektroskopie-Untersuchungen zum Verlauf der Narbenentwicklung nach Myokardinfarkt

    Directory of Open Access Journals (Sweden)

    Scheffer H

    2001-01-01

    Full Text Available Magnetresonanzspektroskopie (MRS erlaubt die nichtinvasive Untersuchung der Konzentrationen von Stoffwechselprodukten und Ionen im Herzen. Der Gesamtnatrium (Na-Gehalt könnte für die Untersuchung der Vitalität von Myokardgewebe verwendet werden, jedoch gibt es keine Berichte über die Entwicklung des Na-Gehalts in der chronischen Infarktnarbe im Vergleich zum normalen Myokard. Die vorliegende Studie untersucht die Änderungen des myokardialen Na-Gehalts während der Narbenentwicklung nach einem Myokardinfarkt (MI am Modell der Koronarligatur in der Ratte. Ratten wurden einer Ligatur des Ramus intraventricularis anterior unterzogen. Myokardgewebe von Kontrolltieren sowie infarziertes Gewebe wurden 1, 3, 7, 28 und 56 Tage postoperativ entnommen und der Na-Gehalt mittels 23Na-MRS und Ionenchromatographie bestimmt. Der Na-Gehalt nach MI war zu allen Zeitpunkten bei beiden Bestimmungsmethoden auf Werte zwischen 306 und 160 % des Kontrollwertes erhöht (n = 6-8 je Gruppe, p 0,01 vs. Kontrolle. Der Na-Gehalt ist im chronisch infarzierten Myokardgewebe zu allen Zeitpunkten erhöht. Damit kann überlebendes Myokard von einer Infarktnarbe anhand des Na-Gehalts unterschieden werden. Diese Information könnte in der 23Na-Magnetresonanzbildgebung (MRI zur Bestimmung der Infarktnarbe eine klinische Anwendung finden.

  9. Samarbete mellan småföretag inom de kreativa näringarna i Jakobstadsregionen : Juthbacka kulturcentrum

    OpenAIRE

    2010-01-01

    Målet med detta examensarbete var att förmedla en djupare kunskap om företagandet inom de kreativa näringarna och olika samarbetsmöjligheter inom dem. I examensarbetet är kulturentreprenörskapen och kunskapen kring det (och entreprenörskap i sig) en viktig byggsten. I arbetet undersöktes, med hjälp av kvalitativa semistrukturerade temaintervjuer, hur samarbete mellan småföretagare inom de kreativa näringarna i Jakobstadsregionen fungerar. Företagarnas upplevelser av samarbete lyftes fram och ...

  10. Können die Parameter Dauerkatheter-Liegezeit, postoperatives Miktionsvolumen und Prostatagewicht als Parameter zur Vorhersage der Kontinenzwahrscheinlichkeit nach endoskopischer, extraperitonealer radikaler Prostatektomie dienen?

    Directory of Open Access Journals (Sweden)

    Sehovic M

    2010-01-01

    Full Text Available Die Kontinenzergebnisse nach den verschiedenen Verfahren der radikalen Prostatektomie zeigen bei entsprechender Erfahrung der Operateure keine Unterschiede und erreichen je nach Definition Raten bis zu 90 %. Es sollen deshalb unabhängige Parameter auf ihre Wertigkeit zur Abschätzung der Kontinenzwahrscheinlichkeit nach EERPE untersucht werden, um die Kontinenzraten verfahrensunabhängig optimieren zu können. Zur Erfassung der Kontinenzraten wird den Patienten jeweils 3, 6 und 12 Monate nach EERPE ein in der eigenen Abteilung entwickelter Fragebogen zugesandt. Das postoperative Miktionsvolumen wird mittels Uroflowmetrie ermittelt. Der Einfluss der zu untersuchenden Parameter wurde in Abhängigkeit der Ergebnisse der Fragebögen nach den entsprechenden Zeitintervallen analysiert. So zeigte sich, dass Patienten, welche 12 Monate nach radikaler Prostatektomie max. 1 Vorlage pro Tag benötigten, eine mittlere Dauerkatheter-Liegezeit von 10,2 Tagen hatten. Männer, die nach demselben Zeitraum 3 Vorlagen über 24 h benötigten, wurden im Mittel 19,5 Tage dauerhaft abgeleitet. Das mittlere Miktionsvolumen in der postoperativen Uroflowmetrie zeigte zu keinem Zeitpunkt einen signifikanten Unterschied zwischen den verschiedenen Gruppen. Ein höheres Prostatagewicht zeigte einen negativen Einfluss auf die Kontinenzergebnisse 3 Monate nach der Operation. Sechs und 12 Monate nach der EERPE ließen sich keine Auswirkungen des Organgewichtes auf das Kontinenzergebnis mehr darstellen. Als Konsequenz ergibt sich deshalb die Forderung nach einer Vermeidung verlängerter Katheter-Liegezeiten. Dies kann bereits intraoperativ durch eine sorgfältige Naht der vesiko-urethralen Anastomose erreicht werden. Voraussetzung dafür ist die sichere Beherrschung des angewandten Operationsverfahrens.

  11. A shorter 146Sm half-life measured and implications for 146Sm-142Nd chronology in the solar system.

    Science.gov (United States)

    Kinoshita, N; Paul, M; Kashiv, Y; Collon, P; Deibel, C M; DiGiovine, B; Greene, J P; Henderson, D J; Jiang, C L; Marley, S T; Nakanishi, T; Pardo, R C; Rehm, K E; Robertson, D; Scott, R; Schmitt, C; Tang, X D; Vondrasek, R; Yokoyama, A

    2012-03-30

    The extinct p-process nuclide (146)Sm serves as an astrophysical and geochemical chronometer through measurements of isotopic anomalies of its α-decay daughter (142)Nd. Based on analyses of (146)Sm/(147)Sm α-activity and atom ratios, we determined the half-life of (146)Sm to be 68 ± 7 (1σ) million years, which is shorter than the currently used value of 103 ± 5 million years. This half-life value implies a higher initial (146)Sm abundance in the early solar system, ((146)Sm/(144)Sm)(0) = 0.0094 ± 0.0005 (2σ), than previously estimated. Terrestrial, lunar, and martian planetary silicate mantle differentiation events dated with (146)Sm-(142)Nd converge to a shorter time span and in general to earlier times, due to the combined effect of the new (146)Sm half-life and ((146)Sm/(144)Sm)(0) values.

  12. Generating DEM from LIDAR data - comparison of available software tools

    Science.gov (United States)

    Korzeniowska, K.; Lacka, M.

    2011-12-01

    In recent years many software tools and applications have appeared that offer procedures, scripts and algorithms to process and visualize ALS data. This variety of software tools and of "point cloud" processing methods contributed to the aim of this study: to assess algorithms available in various software tools that are used to classify LIDAR "point cloud" data, through a careful examination of Digital Elevation Models (DEMs) generated from LIDAR data on a base of these algorithms. The works focused on the most important available software tools: both commercial and open source ones. Two sites in a mountain area were selected for the study. The area of each site is 0.645 sq km. DEMs generated with analysed software tools ware compared with a reference dataset, generated using manual methods to eliminate non ground points. Surfaces were analysed using raster analysis. Minimum, maximum and mean differences between reference DEM and DEMs generated with analysed software tools were calculated, together with Root Mean Square Error. Differences between DEMs were also examined visually using transects along the grid axes in the test sites.

  13. Konstruktioner i småhuse

    DEFF Research Database (Denmark)

    Høffding Knutsson, H.

    Anvisningen er udarbejdet i tilknytning til Bygningsreglement for småhuse, 1985. Den indeholder eksempler på dimensionering og udførelse af konstruktioner i traditionelle og moderne småhuse med indtil 2 etager. Hvis man følger anvisningens eksempler, kræves der ikke ingeniørmæssig eftervisning af......, at reglementets krav er opfyldt med hensyn til styrke, fugt, varme, lyd og brand....

  14. 从(Sm-Sn/m-n)=(Sm+n/m+n)说开去

    Institute of Scientific and Technical Information of China (English)

    阙程柯

    2004-01-01

    @@ 在等差数列{an}中,Sn为其前n项和,则有如下性质: (Sm-Sn/m-n)=(Sm+n/m+n)(m,n∈N*,且m≠n)(1) 证明∵Sm-Sn =ma1+(1/2)m(m-1)d-na1-(1/2)n(n-1)d =(m-n)[a1+1/2(m+n-1)d], ∴(Sm-Sn/m-n)=a1+(1/2)(m+n-1)d.

  15. Structural Characterization of Sm(III)(EDTMP).

    Science.gov (United States)

    Yang, Y; Pushie, M J; Cooper, D M L; Doschak, M R

    2015-11-02

    Samarium-153 ethylenediamine-N,N,N',N'-tetrakis(methylenephosphonic acid) ((153)Sm-EDTMP, or samarium lexidronam), also known by its registered trademark name Quadramet, is an approved therapeutic radiopharmaceutical used in the palliative treatment of painful bone metastases. Typically, patients with prostate, breast, or lung cancer are most likely to go on to require bone pain palliation treatment due to bone metastases. Sm(EDTMP) is a bone-seeking drug which accumulates on rapidly growing bone, thereby delivering a highly region-specific dose of radiation, chiefly through β particle emission. Even with its widespread clinical use, the structure of Sm(EDTMP) has not yet been characterized at atomic resolution, despite attempts to crystallize the complex. Herein, we prepared a 1:1 complex of the cold (stable isotope) of Sm(EDTMP) under alkaline conditions and then isolated and characterized the complex using conventional spectroscopic techniques, as well as with extended X-ray absorption fine structure (EXAFS) spectroscopy and density functional structure calculations, using natural abundance Sm. We present the atomic resolution structure of [Sm(III)(EDTMP)-8H](5-) for the first time, supported by the EXAFS data and complementary spectroscopic techniques, which demonstrate that the samarium coordination environment in solution is in agreement with the structure that has long been conjectured.

  16. Local validation of EU-DEM using Least Squares Collocation

    Science.gov (United States)

    Ampatzidis, Dimitrios; Mouratidis, Antonios; Gruber, Christian; Kampouris, Vassilios

    2016-04-01

    In the present study we are dealing with the evaluation of the European Digital Elevation Model (EU-DEM) in a limited area, covering few kilometers. We compare EU-DEM derived vertical information against orthometric heights obtained by classical trigonometric leveling for an area located in Northern Greece. We apply several statistical tests and we initially fit a surface model, in order to quantify the existing biases and outliers. Finally, we implement a methodology for orthometric heights prognosis, using the Least Squares Collocation for the remaining residuals of the first step (after the fitted surface application). Our results, taking into account cross validation points, reveal a local consistency between EU-DEM and official heights, which is better than 1.4 meters.

  17. A comparative analysis of different DEM interpolation methods

    Directory of Open Access Journals (Sweden)

    P.V. Arun

    2013-12-01

    Full Text Available Visualization of geospatial entities generally entails Digital Elevation Models (DEMs that are interpolated to establish three dimensional co-ordinates for the entire terrain. The accuracy of generated terrain model depends on the interpolation mechanism adopted and hence it is needed to investigate the comparative performance of different approaches in this context. General interpolation techniques namely Inverse Distance Weighted, kriging, ANUDEM, Nearest Neighbor, and Spline approaches have been compared. Differential ground field survey has been conducted to generate reference DEM as well as specific set of test points for comparative evaluation. We have also investigated the suitability of Shuttle Radar Topographic Mapper Digital Elevation Mapper for Indian terrain by comparing it with the Survey of India (SOI Digital Elevation Model (DEM. Contours were generated at different intervals for comparative analysis and found SRTM as more suitable. The terrain sensitivity of various methods has also been analyzed with reference to the study area.

  18. The scaling method of specific catchment area from DEMs

    Institute of Scientific and Technical Information of China (English)

    YANG Xin; TANG Guoan; XlAO Chenchao; GAO Yiping; ZHU Shijie

    2011-01-01

    Specific Catchment Area (SCA) is defined as the upstream catchment area of a unit contour.As one of the key terrain parameters,it is widely used in the modeling of hydrology,soil erosion and ecological environment.However,SCA value changes significantly at different DEM resolutions,which inevitably affect terrain analysis results.SCA can be described as the ratio of Catchment Area (CA) and DEM grid length.In this paper,the scale effect of CA is firstly investigated.With Jiuyuangou Gully,a watershed about 70 km2 in northern Shaanxi Province of China,as the test area,it is found that the impacts of DEM scale on CA are different in spatial distribution.CA value in upslope location becomes bigger with the decrease of the DEM resolution.When the location is close to downstream areas the impact of DEM scale on CA is gradually weakening.The scale effect of CA can be concluded as a mathematic trend of exponential decline.Then,a downscaling model of SCA is put forward by introducing the scale factor and the location factor.The scaling model can realize the conversion of SCA value from a coarse DEM resolution to a finer one at pixel level.Experiment results show that the downscaled SCA was well revised,and consistent with SCA at the target resolution with respect to the statistical indexes,histogram and spatial distribution.With the advantages of no empirical parameters,the scaling model could be considered as a simple and objective model for SCA scaling in a rugged drainage area.

  19. Extract relevant features from DEM for groundwater potential mapping

    Science.gov (United States)

    Liu, T.; Yan, H.; Zhai, L.

    2015-06-01

    Multi-criteria evaluation (MCE) method has been applied much in groundwater potential mapping researches. But when to data scarce areas, it will encounter lots of problems due to limited data. Digital Elevation Model (DEM) is the digital representations of the topography, and has many applications in various fields. Former researches had been approved that much information concerned to groundwater potential mapping (such as geological features, terrain features, hydrology features, etc.) can be extracted from DEM data. This made using DEM data for groundwater potential mapping is feasible. In this research, one of the most widely used and also easy to access data in GIS, DEM data was used to extract information for groundwater potential mapping in batter river basin in Alberta, Canada. First five determining factors for potential ground water mapping were put forward based on previous studies (lineaments and lineament density, drainage networks and its density, topographic wetness index (TWI), relief and convergence Index (CI)). Extraction methods of the five determining factors from DEM were put forward and thematic maps were produced accordingly. Cumulative effects matrix was used for weight assignment, a multi-criteria evaluation process was carried out by ArcGIS software to delineate the potential groundwater map. The final groundwater potential map was divided into five categories, viz., non-potential, poor, moderate, good, and excellent zones. Eventually, the success rate curve was drawn and the area under curve (AUC) was figured out for validation. Validation result showed that the success rate of the model was 79% and approved the method's feasibility. The method afforded a new way for researches on groundwater management in areas suffers from data scarcity, and also broaden the application area of DEM data.

  20. Curie temperature rising by fluorination for Sm2Fe17

    Directory of Open Access Journals (Sweden)

    Matahiro Komuro

    2013-02-01

    Full Text Available Fluorine atoms can be introduced to Sm2Fe17 using XeF2 below 423 K. The resulting fluorinated Sm2Fe17 powders have ferromagnetic phases containing Sm2Fe17FY1(0Sm2Fe17FY2 (1Sm2Fe17, and α-Fe. The unit cell for Sm2Fe17 is elongated by the fluorination. The largest unit cell volume among the rhombohedral Sm2Fe17 compounds is 83.8 nm3, which is 5.8% larger than Sm2Fe17. The rhombohedral Sm2Fe17 with the largest unit cell volume is dissociated above 873 K, and fluorination increases Curie temperature from 403 K for Sm2Fe17 to 675 K. This increase can be explained by the magneto-volume effect.

  1. O papel da aterosclerose na demência

    OpenAIRE

    Nunes, Ana Luísa da Silva de Sousa

    2015-01-01

    Trabalho final de mestrado integrado em Medicina (Geriatria), apresentado à Faculdade de Medicina da Universidade de Coimbra. Introdução: O aumento progressivo da esperança média de vida, responsável pelo envelhecimento da população, tem promovido o crescimento da prevalência de doenças crónicas e cardiovasculares, como são exemplo a demência e a aterosclerose (ATS), respetivamente. Nos últimos anos, a hipótese de existir uma relação entre a ATS e a demência tem sido alvo de di...

  2. Design flood of ungauged basins based on DEM

    Institute of Scientific and Technical Information of China (English)

    Zhang Ting; Feng Ping

    2012-01-01

    In this paper, the northern mountainous area of Fuzhou City which is an ungauged basin has been taken for example to discuss the method of design flood calculation by means of combining the DEM (digital elevation model) and the Xin' anjiang Model ( three components ). The problem of estimating the parameters of the runoff model has been solved by using the parameters of the reference station. In the conflux calculation, the isochrones are obtained by DEM which helps to avoid the cumbersome work of drawing them on the map. With the establishment of the digital elevation model throughout the country, it is practically significant to use it in the hydrological estimation.

  3. Prävention und Rehabilitation nach radikaler Prostatektomie - Teil 1: Erektile Dysfunktion

    Directory of Open Access Journals (Sweden)

    Böck JC

    2010-01-01

    Full Text Available Obwohl die nervenschonende Operationstechnik die radikale Prostatektomie revolutioniert hat, bleibt die erektile Dysfunktion eine relevante Komplikation. Ihre Häufigkeit hängt von zahlreichen nicht bzw. mehr oder weniger gut beeinflussbaren Faktoren ab. Zur Prävention der erektilen Dysfunktion nach radikaler Prostatektomie eignen sich die Umstellung bestimmter Lebensgewohnheiten, die Elimination spezifischer Risikofaktoren und die Prävention und Behandlung von Komorbiditäten, welche die erektile Funktion ungünstig beeinträchtigen. Die nervenschonende Operationstechnik weist eine deutlich geringere Nebenwirkungsrate auf, ist aber bei kapselüberschreitender Tumorausbreitung keine Option. Einige spezielle Operationstechniken und der Verzicht auf Elektrokauter können ebenfalls als präventiv eingestuft werden. Die frühe postoperative penile Rehabilitation (pharmakologisch und mit Vakuum-Erektionspumpen besitzt schon heute einen hohen klinischen Stellenwert. Studien mit hohem Evidenzgrad und klinische Leitlinien liegen derzeit noch nicht vor.

  4. MRI after meniscus and cruciate ligament surgery; MRT nach Meniskus- und Kreuzbandoperationen

    Energy Technology Data Exchange (ETDEWEB)

    Kramer, J.; Stoeger, A.; Huber, H.; Scheurecker, A. [Institut fuer CT- und MRT-Diagnostik am Schillerpark, Linz (Austria); Breitenseher, M. [Waldviertelklinikum Horn (Austria). Institut fuer Radiodiagnostik

    2006-01-01

    Nowadays, due to its high diagnostic accuracy, MR imaging is the method of choice for the evaluation of knee joint disorders pre- and postoperatively. Accurate diagnosis is sometimes possible only if the reporting radiologist has knowledge of the therapeutic procedures and the surgical report. Frequently, further therapeutic management is strongly influenced by MR examinations and radiological reports. (orig.) [German] Die Magnetresonanztomographie (MRT) ist heute aus der praeoperativen Diagnostik wie auch nach Operationen bei Patienten mit persistierenden oder erneuten Beschwerden wegen ihrer hohen Aussagekraft nicht mehr wegzudenken. In den meisten Faellen ist eine suffiziente Aussage allerdings nur moeglich, wenn der Radiologe mit den verschiedenen therapeutischen Methoden theoretisch vertraut ist und ihm Kenntnisse ueber den Operationsbefund vorliegen. Denn nicht selten wird das weitere therapeutische Management durch MR-Untersuchungen ganz entscheidend beinflusst. (orig.)

  5. Feministische Gesellschaftstheorie und die Suche nach der Anschlussfähigkeit

    Directory of Open Access Journals (Sweden)

    Silke Schneider

    2002-07-01

    Full Text Available Der Sammelband „Soziale Verortung der Geschlechter“ stellt einen Querschnitt aktueller feministischer Theoriediskussionen vor. Dass bei der Suche nach angemessenen gesellschaftsanalytischen Kategorien sowohl die Klassiker/-innen der Politischen Theorie und Gesellschaftstheorie wie auch ihre Epigonen mannigfache Kritik-, aber auch vielversprechende Anschlußpunkte zu bieten haben, vermögen alle Beiträge zu vermitteln. Somit bietet der Band mit seiner breit angelegten Konzeption, die wichtige und durchaus gegensätzliche Theorien verbindet, einen guten Überblick und regt gleichzeitig zur vertiefenden Lektüre an. Bemerkenswert ist, dass nahezu alle Beiträge für eine Verbindung von Empirie und Theorie plädieren und hierbei die Einbeziehung einer historischen Perspektive als grundlegend und unabdingbar für eine Analyse der Geschlechterverhältnisse als Teil gesellschaftlicher Entwicklung erachtet wird.

  6. Precise baseline determination for the TanDEM-X mission

    Science.gov (United States)

    Koenig, Rolf; Moon, Yongjin; Neumayer, Hans; Wermuth, Martin; Montenbruck, Oliver; Jäggi, Adrian

    The TanDEM-X mission will strive for generating a global precise Digital Elevation Model (DEM) by way of bi-static SAR in a close formation of the TerraSAR-X satellite, already launched on June 15, 2007, and the TanDEM-X satellite to be launched in May 2010. Both satellites carry the Tracking, Occultation and Ranging (TOR) payload supplied by the GFZ German Research Centre for Geosciences. The TOR consists of a high-precision dual-frequency GPS receiver, called Integrated GPS Occultation Receiver (IGOR), and a Laser retro-reflector (LRR) for precise orbit determination (POD) and atmospheric sounding. The IGOR is of vital importance for the TanDEM-X mission objectives as the millimeter level determination of the baseline or distance between the two spacecrafts is needed to derive meter level accurate DEMs. Within the TanDEM-X ground segment GFZ is responsible for the operational provision of precise baselines. For this GFZ uses two software chains, first its Earth Parameter and Orbit System (EPOS) software and second the BERNESE software, for backup purposes and quality control. In a concerted effort also the German Aerospace Center (DLR) generates precise baselines independently with a dedicated Kalman filter approach realized in its FRNS software. By the example of GRACE the generation of baselines with millimeter accuracy from on-board GPS data can be validated directly by way of comparing them to the intersatellite K-band range measurements. The K-band ranges are accurate down to the micrometer-level and therefore may be considered as truth. Both TanDEM-X baseline providers are able to generate GRACE baselines with sub-millimeter accuracy. By merging the independent baselines by GFZ and DLR, the accuracy can even be increased. The K-band validation however covers solely the along-track component as the K-band data measure just the distance between the two GRACE satellites. In addition they inhibit an un-known bias which must be modelled in the comparison, so the

  7. Male gonadal dose an adjuvant 3-D-pelvic irradiation after anterior resection of rectal cancer. Influence to fertility; Radiogene Hodenbelastung durch Streustrahlung bei adjuvanter 3-D-Beckenbestrahlung nach anteriorer Resektion beim Rektumkarzinom. Einfluss auf die Fertilitaet

    Energy Technology Data Exchange (ETDEWEB)

    Piroth, M.D.; Hensley, F.; Wannenmacher, M.; Zierhut, D. [Radiologische Klinik der Univ. Heidelberg (Germany). Abt. fuer Klinische Radiologie

    2003-11-01

    Maenner erkranken. Wir untersuchten die radiogene Hodenbelastung durch Streustrahlung bei adjuvanter Beckenbestrahlung nach Operation eines Rektumkarzinoms. Die gemessenen Strahlendosen am Hoden wurden zu den Daten der Literatur in Beziehung gesetzt. Patienten und Methode: Wir fuehrten bei 18 Patienten mit thermolumineszenzdetektoren (TLD) In-vivo-Messungen zur Bestimmung der streustrahlenbedingten Gonadendosis durch. Die TLDs wurden an vier definierten Punkten des Skrotums fixiert. Die Bestrahlung erfolgte 3-D-geplant in Drei-Felder-Technik in Bauchlage im Lochbrett. Die Gesamtdosis betrug 50,4 Gy, die Einzeldosis 1,8 Gy taeglich. Nach 45 Gy erfolgte eine Modifikation der Bestrahlungstechnik auf opponierende und kranial verkuerzte Gegenfelder zur kompletten Duenndarmschonung. Ergebnisse: Die mittlere Gonadendosis aller 18 Patienten pro Bestrahlungsfraktion betrug 0,057 Gy (median 0,05 Gy), wobei die Mittelwerte der einzelnen Patienten zwischen 0,035 und 0,114 Gy lagen. Die Standardabweichung betrug 0,02 Gy. Nach 28 Fraktionen, 50,4 Gy entsprechend, errechnete sich kumulativ eine Gesamtdosis am Hoden von 1,60 Gy (0,98-3,19 Gy). Schlussfolgerungen: Das maennliche Keimepithel reagiert auf Bestrahlung ausserordentlich sensibel im Sinne eines negativen Fraktionierungseffektes. Bei Gesamtdosen > 1,5 Gy, fraktioniert appliziert, gilt die Azoospermie als meist irreversibel. Die von uns ermittelte Gonadendosis fuehrt nach den Daten der Literatur sehr wahrscheinlich zu einer dauerhaften Sterilitaet. Wegen der geringen Patientenanzahl sind die Daten vorsichtig zu interpretieren, dennoch muss der Patient ueber die hohe Wahrscheinlichkeit einer bleibenden Infertilitaet aufgeklaert werden. Eine moegliche praetherapeutische Spermakryokonservierung sollte mit dem Patienten besprochen werden. (orig.)

  8. Ordnungspolitische Fragen zur Unternehmenspublizität nach der Enron-Insolvenz

    OpenAIRE

    Zimmermann, Jochen

    2002-01-01

    Am 2. Dezember 2001 hat der US-amerikanische Energiehändler Enron Insolvenz angemeldet. Für viele völlig überraschend brach das an der Börsennotierung gemessen vormals siebtgrößte Unternehmen der USA zusammen. Welche ordnungspolitischen Lehren sind für die Publizität und Rechnungslegung von Unternehmen aus dem Fall Enron zu ziehen?

  9. Prozessorientiertes Qualitätsmanagement nach DIN EN ISO 9001:2015

    OpenAIRE

    Ahrens, Volker

    2016-01-01

    Die im Jahr 2015 grundlegend neue gefasste Qualitätsmanagement-Norm DIN EN ISO 9001 hat die mit der Revision verbundene Chance verpasst, Missverständlichkeiten, Fehler und Ungenauigkeiten zu korrigieren, die schon in der vorausgegangenen Ausgabe im Zusammenhang mit dem geforderten Prozessmanagement enthalten waren. Der vorliegende Beitrag zeigt die Probleme auf und hilft dadurch, negative Einflüsse der Norm auf die Betriebsorganisation zu vermeiden.

  10. Klinische und sonographische Verlaufskontrolle nach Verwendung resorbierbarer Osteosynthesematerialien (PDLLA) im Gesichts- und Hirnschädelbereich

    OpenAIRE

    Adam, Christian

    2005-01-01

    EINLEITUNG Derzeit ist eine Vielzahl biodegradierbarer Osteosynthesesysteme auf dem Markt erhältlich. Unterschiede sind hauptsächlich im Resorptionsverhalten und den Festigkeitseigenschaften zu suchen. Ziel dieser Arbeit ist die klinische und sonographische Untersuchung eines Osteosynthesesystems, dessen Resorbierbarkeit besonders hervorgehoben wird. PATIENTEN UND METHODIK Das resorbierbare Material aus reinem Poly D, L-Laktid (50:50 PDLLA) wurde zur Versorgung von 26 Mittelgesichts...

  11. Wie ich mich mit dem äthiopischen Regime anlegte

    DEFF Research Database (Denmark)

    Hagmann, Tobias

    2016-01-01

    Als Forscher und Kritiker der äthiopischen Politik habe ich viel über das Verhältnis gelernt, in dem Wahrheit und Macht, aber auch Moral und persönliche Interessen zueinander stehen. In den Niederungen der Realpolitik wird mit harten Bandagen um die Deutungshoheit gekämpft wird. Auch Wissenschafter...

  12. Evaluation of the delirium early monitoring system (DEMS)

    NARCIS (Netherlands)

    Rippon, Daniel; Milisen, Koen; Detroyer, Elke; Mukaetova-Ladinska, Elizabeta; Harrison, Beth; Schuurmans, Marieke; Pryor, Claire; Teodorczuk, Andrew

    2016-01-01

    Background: Despite awareness of the negative health and financial outcomes of delirium, systems to routinely assess and manage the condition are absent in clinical practice. We report the development and pilot evaluation of a Delirium Early Monitoring System (DEMS), designed to be completed by

  13. Packing of non-spherical aggregate particles by DEM

    NARCIS (Netherlands)

    Stroeven, P.; He, H.

    2013-01-01

    Loose random and dense random mono-size paclDEM) for eight types of polyhedral grains, for ellipses with different aspect ratio, for cubes and for spheres. Focus was on density, sphericity of the grains and average value and frequency

  14. Ueber Einige Scyphomedusen aus dem Zoologischen Museum in Amsterdam

    NARCIS (Netherlands)

    Stiasny, G.

    1929-01-01

    Die kleine Scyphomedusen-Sammlung aus dem Zoologischen Museum in Amsterdam, über welche hier kurz berichtet wird, enthält keine neuen Formen. Sie ist jedoch bemerkenswert, weil einzelne bekannte Medusen in zahlreichen Exemplaren vorliegen, die sonst stets nur vereinzelt in den Sammlungen vertreten s

  15. Spatial Characterization of Landscapes through Multifractal Analysis of DEM

    Directory of Open Access Journals (Sweden)

    P. L. Aguado

    2014-01-01

    Full Text Available Landscape evolution is driven by abiotic, biotic, and anthropic factors. The interactions among these factors and their influence at different scales create a complex dynamic. Landscapes have been shown to exhibit numerous scaling laws, from Horton’s laws to more sophisticated scaling of heights in topography and river network topology. This scaling and multiscaling analysis has the potential to characterise the landscape in terms of the statistical signature of the measure selected. The study zone is a matrix obtained from a digital elevation model (DEM (map 10 × 10 m, and height 1 m that corresponds to homogeneous region with respect to soil characteristics and climatology known as “Monte El Pardo” although the water level of a reservoir and the topography play a main role on its organization and evolution. We have investigated whether the multifractal analysis of a DEM shows common features that can be used to reveal the underlying patterns and information associated with the landscape of the DEM mapping and studied the influence of the water level of the reservoir on the applied analysis. The results show that the use of the multifractal approach with mean absolute gradient data is a useful tool for analysing the topography represented by the DEM.

  16. Evaluating DEM results with FEM perspectives of load : soil interaction

    NARCIS (Netherlands)

    Tadesse, D.

    2004-01-01

    Keywords: Load - soil interaction, soil structure, soil mechanical properties, FEM (Finite Element Method), Plaxis (Finite Element Code), granular particles, shear stress, DEM (Distinct Element Method), mic

  17. The Cloud2SM Project

    Science.gov (United States)

    Crinière, Antoine; Dumoulin, Jean; Mevel, Laurent; Andrade-Barosso, Guillermo; Simonin, Matthieu

    2015-04-01

    From the past decades the monitoring of civil engineering structure became a major field of research and development process in the domains of modelling and integrated instrumentation. This increasing of interest can be attributed in part to the need of controlling the aging of such structures and on the other hand to the need to optimize maintenance costs. From this standpoint the project Cloud2SM (Cloud architecture design for Structural Monitoring with in-line Sensors and Models tasking), has been launched to develop a robust information system able to assess the long term monitoring of civil engineering structures as well as interfacing various sensors and data. The specificity of such architecture is to be based on the notion of data processing through physical or statistical models. Thus the data processing, whether material or mathematical, can be seen here as a resource of the main architecture. The project can be divided in various items: -The sensors and their measurement process: Those items provide data to the main architecture and can embed storage or computational resources. Dependent of onboard capacity and the amount of data generated it can be distinguished heavy and light sensors. - The storage resources: Based on the cloud concept this resource can store at least two types of data, raw data and processed ones. - The computational resources: This item includes embedded "pseudo real time" resources as the dedicated computer cluster or computational resources. - The models: Used for the conversion of raw data to meaningful data. Those types of resources inform the system of their needs they can be seen as independents blocks of the system. - The user interface: This item can be divided in various HMI to assess maintaining operation on the sensors or pop-up some information to the user. - The demonstrators: The structures themselves. This project follows previous research works initiated in the European project ISTIMES [1]. It includes the infrared

  18. Regional pulmonary edema caused by acute mitral insufficiency after rupture of chordae tendinae with prolaps of the posterior mitral valve; Regionales Lungenoedem bei akuter Mitralinsuffizienz nach Chordae-tendineae-Abriss mit Prolaps des posterioren Mitralsegels

    Energy Technology Data Exchange (ETDEWEB)

    Mauser, M.; Wiedemer, B.; Fleischmann, D. [Klinikum Lahr (Germany). Medizinische Klinik; Billmann, P. [Klinikum Lahr (Germany). Inst. fuer Radiologie; Ennker, J. [Herzzentrum Lahr/Baden (Germany). Abt. fuer Herzchirurgie

    2003-07-01

    An unilateral or predominantly lobar pulmonary edema is an unusual clinical or radiological finding, often misdiagnosed as one of the more common causes of focal lung disease. We report 2 cases of a regional pulmonary edema caused by the acute onset of a severe mitral insufficiency after the rupture of chordae tendinae resulting in a prolaps of the posterior mitral leaflet. In both cases the regional pulmonary edema was initially misdiagnosed as a pneumonic infiltration, which delayed the cardiological diagnostical procedures and the surgical intervention. The mechanism of the regional edema is an excentric regurgitation jet into the left atrium, which is usually directed to the orifice of the right upper lobe pulmonary vein which increases the hydrostatic vascular pressure in the corresponding lung segment. For the confirmation of the diagnosis, transesophageal echogradiographye is helpful in documenting the direction of the regurgitant flow and detecting differential gradients between the right and left pulmonary venous systems. The pulmonary infiltrations, which persisted for several weeks, dissappeared within a few days after surgical mitral-valve-reconstruction in both cases. (orig.) [German] Ein einseitiges oder ueberwiegend lobaeres Lungenoedem ist ein seltener klinischer und radiologischer Befund, der haeufig initial zur Fehldiagnose einer weitaus haeufigeren fokaleren Lungenerkrankung fuehrt. Wir berichten ueber 2 Faelle, bei denen nach Auftreten einer akuten Mitralinsuffizienz auf dem Boden eines Sehnenfadenabrisses am posterioren Mitralsegel ein regionales Lungenoedem zunaechst als pneumonisches Infiltrat fehlgedeutet wurde, was die weitere kardiologische Diagnostik und chirurgische Therapie verzoegerte. Wie in den wenigen in der Literatur beschriebenen Faellen findet sich hierbei ein exzentrischer Regurgitationsjet in den linken Vorhof, der ueblicherweise auf die Einmuendung der rechten oberen Pulmonalvene gerichtet ist und in dem dazugehoerigen

  19. A 30 meter Digital Elevation Model (DEM) of the San Gorgonio Pass area, Riverside County, California.

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Digital Elevation Models (DEMs) are digital records of terrain elevations at regularly spaced intervals. The interval between elevations of 7.5 minute DEMs is...

  20. Validation of the GPU based BLAZE-DEM framework for hopper discharge

    CSIR Research Space (South Africa)

    Govender, Nicolin

    2015-09-01

    Full Text Available method (DEM) has become the defacto standard to simulate particulate materials. The DEM is a computationally intensive numerical approach that is limited to a moderate amount (thousands) of particles when considering fully coupled densely packed systems...

  1. DEM generated from InSAR in mountainous terrain and its accuracy analysis

    Science.gov (United States)

    Hu, Hongbing; Zhan, Yulan

    2011-02-01

    Digital Elevation Model (DEM) derived from survey data is accurate but it is very expensive and time-consuming. In recent years, remote sensing techniques including Synthetic Apenture Radar Interferometry (InSAR) had been developed as a powerful method to derive high precision DEM, especially in mountainous or deep forest areas. The purpose of this paper is to illustrate the principle of InSAR and show the result of a case study in Gejiu city, Yunnan province, China. The accuracy of DEM derived from InSAR (abbreviation as InSAR-DEM) is also evaluated by comparing it with DEM generated from topographic map at the scale of 1:50000 (abbreviation as TOP-DEM). The result shows that: (1)The general precision of the whole selected area acquired by subtracting InSAR-DEM from TOP-DEM is that the maximum, the minimum, the RMSE, and the mean of difference of the two DEMs are 203m, -188m, 26.9m and 5.7m respectively. (2)The topographic trend represented by the two DEMs is coincident, even though TOP-DEM is finer than InSAR-DEM, especial at the valley. (3) Contour maps with the interval of 100m and 50m converted from InSAR-DEM and TOP-DEM respectively show accordant relief trend. Contour from TOP-DEM is smoother than that of from InSAR-DEM, while Contour from InSAR-DEM has more islands than that of from TOP-DEM.(4) Coherence has great influence on the precision of InSAR-DEM, the precision of low-coherence area approaches 100 m while that of high-coherence area can up to m level. (5) The relief trend of 6 profiles represented by InSAR-DEM and TOP-DEM is accordant with tiny difference in partial minutiae. InSAR-DEM displays hypsographies at relative flat areas including surface of water, which reflects the influence of flat earth on InSAR to a certain extent.

  2. Conceptual Design Plan SM-43 Replacement Project

    Energy Technology Data Exchange (ETDEWEB)

    University of California, Los Alamos National Laboratory, SCC Project Office

    2000-11-01

    The Los Alamos National Laboratory Conceptual Design Plan for the SM-43 Replacement Project outlines plans for replacing the SM-43 Administration Building. Topics include the reasons that replacement is considered a necessity; the roles of the various project sponsors; and descriptions of the proposed site and facilities. Also covered in this proposal is preliminary information on the project schedule, cost estimates, acquisition strategy, risk assessment, NEPA strategy, safety strategy, and safeguards and security. Spreadsheets provide further detail on space requirements, project schedules, and cost estimates.

  3. OTF CCSDS SM and C Interoperability Prototype

    Science.gov (United States)

    Reynolds, Walter F.; Lucord, Steven A.; Stevens, John E.

    2008-01-01

    A presentation is provided to demonstrate the interoperability between two space flight Mission Operation Centers (MOCs) and to emulate telemetry, actions, and alert flows between the two centers. One framework uses a COTS C31 system that uses CORBA to interface to the local OTF data network. The second framework relies on current Houston MCC frameworks and ad hoc clients. Messaging relies on SM and C MAL, Core and Common Service formats, while the transport layer uses AMS. A centralized SM and C Registry uses HTTP/XML for transport/encoding. The project's status and progress are reviewed.

  4. Diagnosis and therapy of dysfunctions of human leukocytes after irradiation. Final report; Diagnose und Therapie von Funktionsstoerungen menschlicher Leukozyten nach Bestrahlung. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Beuningen, D. van; Kaffenberger, W. [Sanitaetsakademie der Bundeswehr, Muenchen (Germany); Baaske, C.; Leipert, D.

    1999-08-01

    Immunkomplexe bzw. Phorbolester) aktiviert die NADPH-Oxidase auf parallel verlaufenden Signaltransduktionskaskaden, die in einer Aktivierung von Proteinkinase C-Isoenzymen zusammenlaufen. Einzelne Enzyme der Kaskaden wurden mittels pharmakologischer Inhibitoren in Verbindung mit dem 'Western'-Verfahren identifiziert, Lipid-'2{sup nd}-messenger' durch HPLC-Analyse. Die Daten weisen auf ein aeusserst komplexes System mit Quervernetzungen, Rueckkopplungen und Parallelschaltungen bei der Aktivierung der NADPH-Oxidase hin. Sie identifizieren erstmals mehrere zytoplasmatische/membranstaendige Elemente von Signaltransduktionskaskaden als strahlenempfindlich, die eine moegliche Basis fuer kausal-orientierte Therapieansaetze und eine Erklaerung fuer Immundefekte nach Bestrahlung bieten. (orig.)

  5. Follow-up radiographs of the cervical spine after anterior fusion with titanium intervertebral disc; Roentgen-Verlaufsuntersuchung der Halswirbelsaeule nach anteriorer Fusion mit Titaninterponaten

    Energy Technology Data Exchange (ETDEWEB)

    Biederer, J.; Hutzelmann, A.; Heller, M. [Kiel Univ. (Germany). Klinik fuer Diagnostische Radiologie; Rama, B. [Paracelsus Klinik, Osnabrueck (Germany). Klinik fuer Neurochirurgie

    1999-08-01

    Purpose: We examined the postoperative changes of the cervical spine after treatment of cervical nerve root compression with anterior cervical discectomy and fusion with a new titanium intervertebral disc. Patients and Methods: 37 patients were examined prior to, as well as 4 days, 6 weeks, and 7 months after surgery. Lateral view X-rays and functional imaging were used to evaluate posture and mobility of the cervical spine, the position of the implants, and the reactions of adjacent bone structures. Results: Implantation of the titanium disc led to post-operative distraction of the intervertebral space and slight lordosis. Within the first 6 months a slight loss of distraction and re-kyphosis due to impression of the implants into the vertebral end-plates were found in all patients. We noted partial infractions into the vertebral end-plates in 10/42 segments and slight mobility of the implants in 14/42 segments. Both groups of patients showed reactive spondylosis and local symptoms due to loosening of the implants. The pain subsided after onset of bone bridging and stable fixation of the loosened discs. Conclusions: The titanium intervertebral disc provides initial distraction of the fusioned segments with partial recurrence of kyphosis during the subsequent course. Loosening of the implants with local symptoms can be evaluated with follow-up X-rays and functional imaging. (orig.) [German] Ziel: An Patienten mit zervikalen Kompressionssyndromen wurden Stellung und Funktion der Halswirbelsaeule nach Diskektomie und Fusion mit einem neuartigen Titaninterponat untersucht. Patienten und Methoden: Bei 37 Patienten (42 Segmente) wurden praeoperativ sowie 4 Tage, 6 Wochen und 7 Monate postoperativ mit seitlichen Uebersichts- und Funktionsaufnahmen Stellung und Mobilitaet der HWS beurteilt. Erfasst wurden Lageveraenderungen des Titaninterponates und die Reaktion der angrenzenden Wirbelkoerperabschlussplatten. Ergebnisse: Das Titaninterponat bewirkte postoperativ eine

  6. Explosive consolidation of Sm-Fe-N and Sm-Fe-N/(Ni, Co) magnetic powders

    Energy Technology Data Exchange (ETDEWEB)

    Chiba, A. [Faculty of Engineering, Kumamoto University, Kumamoto, Kumamoto 860-8555 (Japan)]. E-mail: chiba@gpo.kumamoto-u.ac.jp; Hokamoto, K. [Shock Wave and Condensed Matter Research Center, Kumamoto University, Kumamoto, Kumamoto 860-8555 (Japan); Sugimoto, S. [Graduate School of Engineering, Tohoku University, Sendai, Miyagi, 980-0845 (Japan); Kozuka, T. [Faculty of Engineering, Kumamoto University, Kumamoto, Kumamoto 860-8555 (Japan); Mori, A. [Shock Wave and Condensed Matter Research Center, Kumamoto University, Kumamoto, Kumamoto 860-8555 (Japan); Kakimoto, E. [Explosive R and D Center, Explosive Division, Asahi Kasei Co., 5447 Yamane, Chikushino-City, Fukuoka 813-0003 (Japan)

    2007-03-15

    Explosive consolidation of Sm{sub 2}Fe{sub 17}N{sub x} and Sm{sub 2}Fe{sub 17}N{sub x}/(Ni or Co) magnetic powders were attempted to consolidate fully dense magnetic compacts. Dense Sm{sub 2}Fe{sub 17}N{sub x} and Sm{sub 2}Fe{sub 17}N{sub x}/(Ni or Co) bulk materials were obtained by cylindrical explosive consolidation technique using water as a pressure transmitting medium. The values of (BH){sub max} of Sm{sub 2}Fe{sub 17}N{sub x}, Sm{sub 2}Fe{sub 17}N{sub x}-5wt%Ni and Sm{sub 2}Fe{sub 17}N{sub x}-30wt%Co magnets obtained were 23.8, 16.3 and 17.5MGOe (190, 130 and 140kJ/m{sup 3}), respectively.

  7. Pelvic insufficiency fractures after radiotherapy of gynecologic tumors; Osteoradionekrose nach Strahlentherapie gynaekologischer Tumoren

    Energy Technology Data Exchange (ETDEWEB)

    Hoeller, U.; Hoecht, S.; Hinkelbein, W. [Freie Univ. Berlin (Germany). Universitaetsklinikum Benjamin Franklin, Abt. fuer Strahlentherapie; Wudel, E. [Freie Univ. Berlin (Germany). Universitaetsklinikum Benjamin Franklin, Abt. fuer Radiologie und Nuklearmedizin

    2001-06-01

    13 Patientinnen zusaetzlich eine Osteodensitometrie. Die Patientinnen waren adjuvant (n=29) bzw. primaer (n=18) ueber opponierende Felder mit 18-MeV-Photonen mit 46 Gy und Brachytherapie (15-39 Gy) bestrahlt worden. Die mediane Nachbeobachtungszeit betrug 36 Monate. Ergebnisse: Bei sieben Patientinnen trat eine Osteoradionekrose median 11 Monate nach Therapie (minimal 2 Monate) auf. Bei allen Patientinnen traten maessige bis starke Schmerzen im Beckenring auf, die bei fuenf Patientinnen ohne spezifische Therapie nach 5-28 Monaten ganz/teilweise reversibel waren. Bei Erstuntersuchung zeigten sich mit einer Ausnahme szintigraphisch starke Anreicherungen im Ileosakralgelenk und/oder Os sacrum, die mit Infraktionen (CT) korrelierten. Bei den 40 zeitgleich behandelten Patientinnen traten keine Schmerzen, keine intensiven, aber vier maessiggradige szintigraphische Mehranreicherungen (CT unauffaellig) im Feld auf. Drei von vier untersuchten Patientinnen mit Osteoradionekrosen hatte eine Osteoporose im Vergleich zu sieben von neun untersuchten Patientinnen ohne Osteoradionekrosen. Schlussfolgerung: Im Beckenbereich koennen lumbosakraler Schmerz und Sklerose/Fraktur auf eine Osteoradionekrose hinweisen, die schon im ersten Jahr nach Therapie manifest werden kann und von einer ossaeren Metastasierung differenziert werden sollte. (orig.)

  8. Blood volume changes after radiotherapy of the CNS; Blutvolumenveraenderungen nach Strahlentherapie des zentralen Nervensystems

    Energy Technology Data Exchange (ETDEWEB)

    Wenz, F. [Radiologische Universitaetsklinik, Heidelberg (Germany); Fuss, M. [Radiologische Universitaetsklinik, Heidelberg (Germany); Scholdei, R. [Radiologische Universitaetsklinik, Heidelberg (Germany); Essig, M. [Abt. Onkologische Diagnostik und Therapie, Deutsches Krebsforschungszentrum, Heidelberg (Germany); Lohr, F. [Radiologische Universitaetsklinik, Heidelberg (Germany); Rempp, K. [Abt. Klinische Neuroradiologie, Univ. Heidelberg (Germany); Brix, G. [Abt. Biophysik und Medizinische Strahlenphysik, Deutsches Krebsforschungszentrum, Heidelberg (Germany); Knopp, M.V. [Abt. Onkologische Diagnostik und Therapie, Deutsches Krebsforschungszentrum, Heidelberg (Germany); Engenhart, R. [Radiologische Universitaetsklinik, Heidelberg (Germany); Wannenmacher, M. [Radiologische Universitaetsklinik, Heidelberg (Germany)

    1996-10-01

    mitotische Aktivitaet von Gliomen korreliert teilweise mit der Angiogenese. Die dynamische T2*-gewichtete Magnetresonanztomographie (DSC MRI - dynamic susceptibility contrast MR imaging) erlaubt die Messung der zerebralen Haemodynamik basierend auf der Indikatorverduennungstheorie. Die Autoren beschreiben Theorie und Technik der Methode und berichten anhand repraesentativer Fallbeispiele ueber Erfahrungen mit Blutvolumenmessungen (BV) nach Strahlentherapie am zentralen Nervensystem. An einem konventionellen 1.5-Tesla-MR-System ohne Hardwaremodifikationen wurde eine neuentwickelte Doppelschichttechnik etabliert, die eine Absolutbestimmung des Blutvolumens in ausgewaehlten `regions of interest` (ROI) im Gehirn ermoeglicht. Mit einer SD-FLASH-Sequenz (simultaneous dual fast low angle shot, TR/TE1/TE2 31 ms/16 ms/25 ms, Flipwinkel 10 ) werden 55 T2*-gewichtete Zweischichtaufnahmen vor, waehrend und nach Bolusinjektion von Gd-DTPA (0,1 mmol/kg in 5 s) aufgenommen. Aus den gemessenen Signal-Zeit-Kurven werden Konzentrations-Zeit-Kurven errechnet. Mit Hilfe der in den hirnversorgenden Arterien gemessenen arteriellen Inputfunktion (AIF) werden die Blutvolumenwerte im Gewebe normalisiert und koennen als Absolutwerte in ml/100 g berechnet werden. Die dynamische Untersuchung dauert etwa zwei bis drei Minuten, die Nachverarbeitung 15 bis 20 Minuten. Anhand von Fallbeispielen wird aufgezeigt wie sich das Blutvolumen nach Bestrahlung veraendert. Im gesunden Hirngewebe und in niedriggradigen Gliomen wurde eine Reduktion des Blutvolumens beobachtet. Bei Tumorrezidiven wurde eine erneute, lokale Erhoehung des Blutvolumens gemessen. Bestrahlungsinduzierte Blutvolumenveraenderungen am zentralen Nervensystem koennen mit der dynamischen T2*-gewichteten Magnetresonanztomographie gemessen werden. (orig.)

  9. Evaluation of lidar-derived DEMs through terrain analysis and field comparison

    Science.gov (United States)

    Cody P. Gillin; Scott W. Bailey; Kevin J. McGuire; Stephen P. Prisley

    2015-01-01

    Topographic analysis of watershed-scale soil and hydrological processes using digital elevation models (DEMs) is commonplace, but most studies have used DEMs of 10 m resolution or coarser. Availability of higher-resolution DEMs created from light detection and ranging (lidar) data is increasing but their suitability for such applications has received little critical...

  10. The TanDEM-X Digital Elevation Model and Terrestrial Impact Craters

    OpenAIRE

    Gottwald, Manfred; Fritz, Thomas; Breit, Helko; Schättler, Birgit; Harris, Alan

    2014-01-01

    We use the global digital elevation model (DEM) generated in the TanDEM-X mission for mapping further confirmed terrestrial impact craters. This DEM provides the most accurate spaceborne global elevation data. It permits detailed studies of the topography of the sites of simple and complex structures with unprecedented accuracy.

  11. Radiological intervention in postoperative complications following liver transplantation; Interventionelle radiologische Verfahren bei postoperativen Komplikationen nach Lebertransplantation

    Energy Technology Data Exchange (ETDEWEB)

    Berger, H. [Inst. fuer Radiologische Diagnostik, Klinikum Grosshadern, Univ. Muenchen (Germany); Staebler, A. [Inst. fuer Radiologische Diagnostik, Klinikum Grosshadern, Univ. Muenchen (Germany); Kunzfeld, A. [Inst. fuer Radiologische Diagnostik, Klinikum Grosshadern, Univ. Muenchen (Germany); Zuelke, C. [Chirurgische Klinik und Poliklinik, Klinikum Grosshadern, Univ. Muenchen (Germany); Anthuber, M. [Chirurgische Klinik und Poliklinik, Klinikum Grosshadern, Univ. Muenchen (Germany); Kraemling, H.J. [Chirurgische Klinik und Poliklinik, Klinikum Grosshadern, Univ. Muenchen (Germany)

    1997-03-01

    Purpose: Postoperative complications contribute significantly to the morbidity and mortality of liver transplant patients. The management of these complications requires a multidisciplinary approach in which interventional radiology plays an integral role. Indications, techniques, and results of radiological interventions in the management of the liver transplant patient are presented. Material and methods: During a 10-year period, 52 out of 420 liver transplant recipients underwent radiological interventions, including angioplasty (n=20), embolization (n=2), percutaneous drainage (n=11), and biliary interventions (n=19). Results: Nine out of ten arterial stenoses located at the anastomoses (n=8), within the liver (n=1) and in the coeliac trunk (n=1) were successfully treated by balloon dilatation. Angioplasty of supra- or infrahepatic anastomotic stenoses of the IVC (n=5) provided long-term success only in combination with stent implantation. Portal vein stenoses and chronic thrombosis were treated by balloon dilatation and stent insertion via transhepatic catheterization of the portal vein. Late strictures of bile-duct anastomoses can be managed by ante- or retrograde interventions. If biliary complications are related to inflammatory or septic problems, the prognosis of graft survival is poor. Conclusion: Interventional radiological procedures are very useful in the management of vascular and biliary complications after liver transplantation. These techniques provide a cure in many situations, and thus, surgical interventions may be avoided in selected cases. (orig.) [Deutsch] Die komplexe chirurgisch-technische Operation sowie immunologische und ischaemieverursachte Probleme tragen zur relativ hohen Komplikationsrate nach Lebertransplantation bei, die grundsaetzlich organ- bzw. lebensbedrohlich fuer den Patienten sind. Interventionelle radiologische Techniken sind aufgrund ihres minimal-invasiven Charakters in der klinischen Versorgung dieser Komplikationen

  12. Fallbericht: Bilaterales distales Anastomosenaneurysma sieben Jahre nach aorto-bifemoraler Bypass-Anlage mit monströser Ausdehnung rechts

    Directory of Open Access Journals (Sweden)

    Pfabe FP

    2015-01-01

    Full Text Available Es wird von einem 57-jährigen Patienten mit monströsem Nahtaneurysma in der rechten Leiste sieben Jahre nach Bypass-Anlage berichtet. Nach alloplastischem Gefäßersatz stellt insbesondere die Anastomose einen Prädilektionsort für Komplikationen dar. Neben Nahtaneurysmen treten hier gehäuft Stenosen, Verschlüsse, Rupturen und Infektionen auf. Degradation, Inkorporationsreaktion, biomechanische und hämodynamische Faktoren sowie das Operationstrauma bestimmen maßgeblich die Komplikationsrate. Das Nahtaneurysma manifestiert sich klinisch als pulsatiler Tumor, als Blutung bei Ruptur oder als Ischämie bei peripherer Thromboembolie. Thromben, Wachstumsrate, Klinik und Komplikationen bestimmen überwiegend den Therapiezeitpunkt.

  13. Recycling of grease in waste water from catering establishments and meat processing plants; Wiederverwertung von Fetten aus dem Abwasser von Kuechenbetrieben und aus der Fleischverarbeitung

    Energy Technology Data Exchange (ETDEWEB)

    Bachon, U. [Passavant-Werke AG, Aarbergen (Germany)

    1993-07-01

    In catering establishments and meat processing plants, grease and intermediate products reach the drains together with the waste water. Grease separators are used in order to retain these waste water substances. According to present waste water treatment, most of these valuable fresh raw materials are lost to the economic cycle and have to be eliminated at considerable expense. In order to be able to recycle them in a rational manner, the grease and suspended substances have to be retrieved in a fresh condition, which in turn presupposes a basic change of the waste water treatment principle. Based on fundamental analytical investigations, among other things with a view to determining the quantity of grease carried by waste water of the above mentioned type, a waste water treatment concept as well as a newly developed grease separation system are presented with the aid of which the separated grease and suspended substances can be recycled in a largely fresh condition. In addition to the closing of waste cycles, this results in optimising the disposal operations and in reducing the cost of disposal. (orig.) [Deutsch] In gewerblichen Kuechenbetrieben und fleischverarbeitenden Betrieben gelangen Fette und Zwischenprodukte mit dem Abwasser in die Kanalisation. Um diese Abwasserinhaltsstoffe zurueckzuhalten, werden Fettabscheideranlagen eingesetzt. Nach der heutigen Abwasserbehandlung gehen diese im frischen Zustand hochwertigen Rohstoffe dem Wirtschaftskreislauf groesstenteils verloren und muessen kostenaufwendig beseitigt werden. Um sie einer rationellen Wiederverwertung zufuehren zu koennen, muessen die Fette und Sinkstoffe in moeglichst frischem Zustand wiedergewonnen werden. Dies setzt eine grundsaetzliche Veraenderung des Abwasserbehandlungsprinzips voraus. Aufbauend auf grundlegende analytische Untersuchungen, u.a. zur Bilanzierung der Fettfrachten im Abwasser der genannten Betriebsarten, werden ein Abwasserbehandlungskonzept sowie ein neuentwickeltes

  14. Fare- og smågrisestalde

    DEFF Research Database (Denmark)

    Petersen, H.W.; Bøndergaard, E.

    Byggebladssamlingen omfatter 4 eksempler på farestalde til løsgående søer, 10 eksempler på farestalde til bundne søer, samt 3 eksempler på smågrisestalde. Detailtegningsmaterialet omfatter krybber, rensegange, gødningskanaler, ventilationskanaler og gulve. Tegningerne omfatter flere udførelser af...

  15. SmAHTR-CTC Neutronic Design

    Energy Technology Data Exchange (ETDEWEB)

    Ilas, Dan [ORNL; Holcomb, David Eugene [ORNL; Gehin, Jess C [ORNL

    2014-01-01

    Building on prior experience for the 2010 initial SmAHTR neutronic design and on 2012 neutronic design for the advanced high temperature reactor (AHTR), this paper presents the main results of the neutronic design effort for the newly re-purposed SmAHTR-CTC reactor concept. The results are obtained based on full-core simulations performed with SCALE6.1. The dimensionality of the SmAHTR design space is reduced by using constraints originating in material fabricability, fuel licensing, molten salt chemistry, thermal-hydraulic and mechanical considerations. The new design represents in many regards a substantial improvement from the neutronic performance standpoint over the 2010 SmAHTR concept. Among other results, it is shown that fuel cycle length of over 2 years or discharged fuel burnup of 40GWd/MTHM are possible with a low, 8% fuel enrichment in a once-through fuel cycle, while 8-year once-through fuel cycle lengths are possible at higher fuel enrichments.

  16. Combined SM Higgs Limits at the Tevatron

    Energy Technology Data Exchange (ETDEWEB)

    Krumnack, N.

    2009-10-01

    We combine results from CDF and D{sup 0} on direct searches for a standard model (SM) Higgs boson (H) in p{bar p} collisions at the Fermilab Tevatron at {radical}s = 1.96 TeV. Compared to the previous Higgs Tevatron combination, more data and new channels WH {yields} {tau}{nu}b{bar b}, VH {yields} {tau}{tau}b{bar b}/jj{tau}{tau}, VH {yields} jjb{bar b}, t{bar t}H {yields} t{bar t}b{bar b} have been added. Most previously used channels have been reanalyzed to gain sensitivity. We use the latest parton distribution functions and gg {yields} H theoretical cross sections when comparing our limits to the SM predictions. With 2.0-3.6 fb{sup -1} of data analyzed at CDF, and 0.9-4.2 fb{sup -1} at D{sup 0}, the 95% C.L. upper limits on Higgs boson production are a factor of 2.5 (0.86) times the SM cross section for a Higgs boson mass of m{sub H} = 115 (165) GeV/c{sup 2}. Based on simulation, the corresponding median expected upper limits are 2.4 (1.1). The mass range excluded at 95% C.L. for a SM Higgs has been extended to 160 < m{sub H} < 170 GeV/c{sup 2}.

  17. Sport nach Krebs : der Einfluss sportlicher Aktivität auf die Bewältigung einer Brustkrebserkrankung

    OpenAIRE

    Wilde-Gröber, Ulrike

    2004-01-01

    Im Anschluss an Diagnose und Behandlung treten bei den meisten an Brustkrebs erkrankten Frauen eine Vielzahl psychischer und sozialer Probleme sowie physische Beeinträchtigungen auf. „Sport nach Krebs“ stellt ein ambulantes, wohnortnahes Nachsorgekonzept in der Rehabilitation dar, das speziell für brustkrebsoperierte Frauen von den Landessportverbänden angeboten wird. Neben der Verbesserung funktioneller behandlungsbedingter Beeinträchtigungen sollen die positiven Wirkungen von Bewegung, S...

  18. Einfluß der Knochendichte aud das Bruchverhalten und die Stabilität nach Osteosynthese am proximalen Humerus

    Directory of Open Access Journals (Sweden)

    Fankhauser F

    2002-01-01

    Full Text Available Einleitung: Frakturen des proximalen Humerus stellen 4-5 % aller Extremitätenfrakturen dar und betreffen insbesondere den älteren Menschen mit schlechter Knochenqualität. Das Ausmaß der Knochenqualitätsminderung scheint der dominierende Faktor über andere Aspekte bei der Frakturentstehung sowie der operativen Behandlung proximaler Oberarmfrakturen zu sein. Material und Methode: An Leichenhumeri wurde primär mittels DEXA (Dual Energy X-Ray Absorptiometry eine Knochendichtemessung durchgeführt. Im Anschluß wurden alle Knochen einer Biegebelastung ausgesetzt und dabei die Bruchfestigkeit des jeweiligen Humerus in Korrelation zur Knochendichte gesetzt. Nach Schraubenosteosynthese wurde neuerlich ein Belastungstest durchgeführt und dieses Ergebnis in Korrelation zur Knochendichte gesetzt. Ergebnisse: Unter Berücksichtigung der Knochendichte zeigten sich die Ergebnisse des Biegeversuchs hochsignifikant, nicht jedoch im Hinblick auf die Knochengröße. Auch die Belastungstests nach Versorgung mittels Schrauben waren hochsignifikant im Hinblick auf die Korrelation zur Knochendichte, wobei die Knochendichte über andere Parameter wie Schraubengröße, -anzahl und -position dominierte. Diskussion: Neben der Weiterentwicklung von Technik und Implantaten zur Versorgung proximaler Humerusfrakturen sollte das Hauptaugenmerk auf die Qualität des Knochens selbst gelegt werden, welche das Frakturrisiko und die Stabilität nach operativer Versorgung determiniert.

  19. Generation of Statewide DEMs and Orthoimages – Guidelines and Methodology

    Directory of Open Access Journals (Sweden)

    Giribabu Dandabathula

    2015-06-01

    Full Text Available Cartosat-1 is a global, high resolution stereographic imaging mission to support enhanced applications in several areas of terrain mapping, natural resources management, disaster management, infrastructure and development planning. A collaborative project of generating statewide Digital Elevation Model (DEMs and mosaic of Ortho-image for all the states and union territories in India has completed under the project namely Space based Information Support for Decentralized Planning (SIS-DP using Photogrammetric techniques with Cartosat-1 stereo data.  Approximately 11000 stereo pairs of Cartosat-1 data were used in this process. Photogrammetric blocks for each state were processed using existing reference tiles and accordingly ortho-images were generated. The paper outlines the methodology for generating state-wide Digital Elevation Models (DEMs and ortho-images. The guidelines that govern the quality of the output were discussed. Dissemination mechanism via public accessible web platform was described.

  20. Characterization of artificial spherical particles for DEM validation studies

    Institute of Scientific and Technical Information of China (English)

    Ignazio Cavarretta; Catherine O'Sullivan; Erdin Ibraim; Martin Lings; Simon Hamlin; David Muir Wood

    2012-01-01

    This paper describes a study in which advanced particle-scale characterization was carried out on spherical particles that can be used in experimental tests to validate discrete element method (DEM) simulations,Two types of particle,alkaline and borosilicate glass heads,made from two different materials,were considered.The particle shape,stiffness,contact friction properties and surface roughness were measured.The influences of hardness and roughness on the mechanical response of the particles were carefully considered.Compared to the alkaline beads,the borosilicate beads were more spherical and more uniform in size,and they exhibited mechanical characteristics closer to natural quartz sand.While only two material types were studied,the work has the broader implication as a methodology for selecting particles suitable for use in DEM studies and the key parameters that should be considered in the selection process are highlighted.

  1. Solar-optimized building construction. TC3: Solar-optimized new building ECOTEC 1 and 2: Construction of a new office and laboratory building in two stages, optimised according to solar, energetic and ecological aspects. Phase 1: Projecting, construction and system optimisation. Final report; Solaroptimiertes Bauen. TK 3: Solaroptimierter Neubau ECOTEC 1 und 2: Neubau eines Buero und Laborgebaeudes in zwei Bauabschnitten, optimiert nach solaren, energetischen und oekologischen Gesichtspunkten. Phase 1: Planung, Bauausfuehrung und Systemoptimierung. Schlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    The two ECOTEC buildings are constructed on the premises of Bremen university. They are identical mirror buildings with optimised solar technology and heat pumps to reduce the dependence on external energy supply. The results achieved so far are promising. [German] Im Mittelpunkt des Vorhabens stand die Errichtung der solaroptimierten Niedrigenergie-Gebaeude ECOTEC in zwei Bauabschnitten gleichem, aber spiegelverkehrtem Grundrissen auf dem Gelaende des Technologieparks der Universitaet Bremen. Das Planungskonzept sah zur Reduktion des Fremdenergiebedarfs den optimierten Einsatz und die Kopplung von Solarenergie, Waermepumpe ueber die Gebaeudeleittechnik vor. Basis fuer alle Berechnungen und Planungen war der Niedrigenergiestandard, der durch erhoehte Waermedaemmung der Gebaeudehuelle, kontrollierte Lueftung, solartechnische Module und solararchitektonische Merkmale erreicht und sogar ueberschritten wurde. Durch den gezielten Einsatz der Gebaeudeleit- und -systemtechnik wird ein energiesparender Betrieb insbesondere der Gebaeudebeheizung, der Lueftungsanlage sowie der Beleuchtung schon in der Planungsphase vorbereitet. Zusammenfassend laesst sich feststellen, dass das entwickelte Technikkonzept nach erfolgter Abstimmung mit den Nutzerbeduerfnissen geringste Energieverbraeuche bei sehr gutem Komfort bietet. (orig.)

  2. Mapping debris-flow hazard in Honolulu using a DEM

    Science.gov (United States)

    Ellen, Stephen D.; Mark, Robert K.; ,

    1993-01-01

    A method for mapping hazard posed by debris flows has been developed and applied to an area near Honolulu, Hawaii. The method uses studies of past debris flows to characterize sites of initiation, volume at initiation, and volume-change behavior during flow. Digital simulations of debris flows based on these characteristics are then routed through a digital elevation model (DEM) to estimate degree of hazard over the area.

  3. Preparation and quality control of {sup 153}Sm radiopharmaceuticals

    Energy Technology Data Exchange (ETDEWEB)

    Swasono, R. Tamat; Widyastuti, W.; Purwadi, B.; Laksmi, I. [Radioisotope Production Center - BATAN, Jakarta (Indonesia)

    1998-10-01

    The paper summarizes the preparation and quality control of {sup 153}Sm-EDTMP and three {sup 153}Sm-radiosynovectomy agents. Natural and enriched Sm{sub 2}O{sub 3} (98.7% {sup 152}Sm) irradiated in RSG-GAS 30 MW reactor yielded pure and high specific activity {sup 153}Sm. Labeling of EDTMP with {sup 153}Sm was carried out by mixing {sup 153}SmCl{sub 3} solution of pH 4.0 to an EDTMP solution at room temperature then pH adjustment to 8. The {sup 153}Sm-EDTMP complex was separated from the free {sup 153}Sm{sup +3} on a Chelex 100 column. Radiochemical purity was determined by thin layer chromatography using Cellulose sheets and pyridine: ethanol: water (1: 2: 4) mixture as solvent. The {sup 153}Sm-EDTMP has been shown to be stable for two weeks. Three particulate preparations of {sup 153}Sm used for the irradiation of chronic synovitis have been studied. They are hydroxyapatite particles, human serum albumin microspheres and ferric hydroxide macroaggregates. The {sup 153}Sm-ferric hydroxide macroaggregates were prepared in a single step by coprecipitation of {sup 153}Sm in the formation of Fe(OH){sub 3}. Preparation of {sup 153}Sm-labelled hydroxyapatite particles and {sup 153}Sm-labelled albumin microspheres were carried out by {sup 153}Sm labelling of previously prepared particles. Radiolabelling efficiency were greater than 95% for hydroxyapatite particles and macroaggregates and was lower than 20% for albumin microspheres. The particle sizes were inspected using an optical microscope with a haemocytometer and micrometric ocular. (author)

  4. DEM analysis of FOXSI-2 microflare using AIA observations

    Science.gov (United States)

    Athiray Panchapakesan, Subramania; Glesener, Lindsay; Vievering, Juliana; Camilo Buitrago-Casas, Juan; Christe, Steven; Inglis, Andrew; Krucker, Sam; Musset, Sophie

    2017-08-01

    The second flight of Focusing Optics X-ray Solar Imager (FOXSI) sounding rocket experiment was successfully completed on 11 December 2014. FOXSI makes direct imaging and spectral observation of the Sun in hard X-rays using grazing incidence optics modules which focus X-rays onto seven focal plane detectors kept at a 2m distance, in the energy range 4 to 20 keV, to study particle acceleration and coronal heating. Significant HXR emissions were observed by FOXSI during microflare events with A0.5 and A2.5 class, as classified by GOES, that occurred during FOXSI-2 flight.Spectral analysis of FOXSI data for these events indicate presence of plasma at higher temperatures (>10MK). We attempt to study the plasma content in the corona at different temperatures, characterized by the differential emission measure (DEM), over the FOXSI-2 observed flare regions using the Atmospheric Imaging Assembly (SDO/AIA) data. We utilize AIA observations in different EUV filters that are sensitive to ionized iron lines, to determine the DEM by using a regularized inversion method. This poster will show the properties of hot plasma as derived from FOXSI-2 HXR spectra with supporting DEM analysis using AIA observations.

  5. A simplified DEM numerical simulation of vibroflotation without backfill

    Science.gov (United States)

    Jiang, M. J.; Liu, W. W.; He, J.; Sun, Y.

    2015-09-01

    Vibroflotation is one of the deep vibratory compaction techniques for ground reinforcement. This method densities the soil and improves its mechanical properties, thus helps to protect people's lives and property from geological disasters. The macro reinforcement mechanisms of vibroflotation method have been investigated by numerical simulations, laboratory and in-situ experiments. However, little attention has been paid on its micro - mechanism, which is essential to fully understand the principle of the ground reinforcement. Discrete element method (DEM), based on discrete mechanics, is more powerful to solve large deformation and failure problems. This paper investigated the macro-micro mechanism of vibroflotation without backfill under two conditions, i.e., whether or not the ground water was considered, by incorporating inter-particle rolling resistance model in the DEM simulations. Conclusions obtained are as follows: The DEM simulations incorporating rolling resistance well replicate the mechanical response of the soil assemblages and are in line with practical observations. The void ratio of the granular soil fluctuates up and down in the process of vibroflotation, and finally reduces to a lower value. It is more efficient to densify the ground without water compared to the ground with water.

  6. Validation of DEM prediction for granular avalanches on irregular terrain

    Science.gov (United States)

    Mead, Stuart R.; Cleary, Paul W.

    2015-09-01

    Accurate numerical simulation can provide crucial information useful for a greater understanding of destructive granular mass movements such as rock avalanches, landslides, and pyroclastic flows. It enables more informed and relatively low cost investigation of significant risk factors, mitigation strategy effectiveness, and sensitivity to initial conditions, material, or soil properties. In this paper, a granular avalanche experiment from the literature is reanalyzed and used as a basis to assess the accuracy of discrete element method (DEM) predictions of avalanche flow. Discrete granular approaches such as DEM simulate the motion and collisions of individual particles and are useful for identifying and investigating the controlling processes within an avalanche. Using a superquadric shape representation, DEM simulations were found to accurately reproduce transient and static features of the avalanche. The effect of material properties on the shape of the avalanche deposit was investigated. The simulated avalanche deposits were found to be sensitive to particle shape and friction, with the particle shape causing the sensitivity to friction to vary. The importance of particle shape, coupled with effect on the sensitivity to friction, highlights the importance of quantifying and including particle shape effects in numerical modeling of granular avalanches.

  7. Empirische Analyse einer verdolmetschten Gerichtsverhandlung aus dem Slowenischen ins Deutsche

    Directory of Open Access Journals (Sweden)

    Lea Burjan

    2012-12-01

    Full Text Available Dieser Artikel befasst sich mit dem Diskurs in einer Gerichtsverhandlung mit verschiedensprachigen Parteien. Die übliche Konversation im Gerichtssaal findet in Form eines Dialogs statt, wobei die Strategie des Gespräches durch den Richter als Gesprächsmoderator determiniert wird. Die Interaktion im gedolmetschten Diskurs verläuft anders als im nicht gedolmetschten Diskurs. Bei gedolmetschten Verhandlungen übernimmt der Gerichtsdolmetscher, als ein Mittler in der Konversation, die verantwortungsvolle Aufgabe, die richterliche Strategie der Konversation, also den eigentlichen Verhandlungsablauf, sinngemäß und originaltreu in den zielsprachlichen Kontextzu transportieren. Meistert er seine Aufgabe, wird ein reibungsloser Kommunikationsablauf im Sinne der gegenseitigen Einflussnahme der jeweiligen Kommunikationsteilnehmer gewährleistet. Scheitert er bei seinem Vorhaben, so kommt es in der Kommunikation zu Störungen, die durch zusätzliche sprachliche Interventionen beseitigt werden müssen. Seine Tätigkeit wird determiniert und mitbeeinflusst von den Unterschieden in der Rechtsterminologie der beiden Sprachen (Sprachregister, von dem vorgegebenen Dolmetschmodus, und von der Gesprächsstrategie des Sprachmoderators. Somit ist das Ziel des vorliegenden Beitrags, anhand einer empirischen Analyse einer gedolmetschten Zeugenvernehmung herauszufinden, inwiefern es dem Gerichtsdolmetscher gelingt, den ausgangssprachlichen Diskurs originaltreu in die Zielsprache zu übertragen und auf welche Probleme er bei diesem Übertragungsprozess stößt. Der vorliegenden Untersuchung dienen die von den Gerichten veranlassten Audioaufnahmen von mündlichen Verhandlungen als Korpus.

  8. New AMS method to measure the atom ratio {sup 146}Sm/{sup 147}Sm for a half-life determination of {sup 146}Sm

    Energy Technology Data Exchange (ETDEWEB)

    Kinoshita, N. [Tandem Accelerator Complex, Research Facility Center for Science and Technology, University of Tsukuba (Japan); Paul, M., E-mail: paul@vms.huji.ac.il [Racah Institute of Physics, Hebrew University, Jerusalem 91904 (Israel); Alcorta, M. [Physics Division, Argonne National Laboratory, Argonne, IL 60439 (United States); Bowers, M.; Collon, P. [Department of Physics, University of Notre Dame, Notre Dame, IN 46556-5670 (United States); Deibel, C.M. [Physics Division, Argonne National Laboratory, Argonne, IL 60439 (United States); Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, MI 46624 (United States); DiGiovine, B. [Physics Division, Argonne National Laboratory, Argonne, IL 60439 (United States); Goriely, S. [Universite Libre de Bruxelles, CP-226, Brussels 1050 (Belgium); Greene, J.P.; Henderson, D.J.; Jiang, C.L. [Physics Division, Argonne National Laboratory, Argonne, IL 60439 (United States); Kashiv, Y. [Department of Physics, University of Notre Dame, Notre Dame, IN 46556-5670 (United States); Kay, B.P.; Lee, H.Y.; Marley, S.T. [Physics Division, Argonne National Laboratory, Argonne, IL 60439 (United States); Nakanishi, T. [Faculty of Chemistry, Institute of Science and Engineering, Kanazawa University (Japan); Pardo, R.C.; Patel, N.; Rehm, K.E. [Physics Division, Argonne National Laboratory, Argonne, IL 60439 (United States); Robertson, D. [Department of Physics, University of Notre Dame, Notre Dame, IN 46556-5670 (United States); and others

    2013-01-15

    The extinct p-process nuclide {sup 146}Sm (t{sub 1/2} = 103 {+-} 5 Myr) is known to have been present in the Early-Solar System and has been proposed as an astrophysical chronometer. {sup 146}Sm is also intensely used to date meteorite and planetary differentiation processes, enhancing the importance of an accurate knowledge of the {sup 146}Sm half-life. We are engaged in a new determination of the {sup 146}Sm half-life in which the {sup 146}Sm/{sup 147}Sm atom ratio is determined by accelerator mass spectrometry at the ATLAS facility of Argonne National Laboratory. In order to reduce systematic errors in the AMS determination of the {sup 146}Sm/{sup 147}Sm ratios (in the range of 10{sup -7}-10{sup -9}), {sup 146}Sm and {sup 147}Sm ions were alternately counted in the same detector in the focal plane of a gas-filled magnet, respectively in continuous-wave and attenuated mode. Quantitative attenuation is obtained with the 12 MHz pulsed and ns-bunched ATLAS beam by chopping beam pulses with an RF sweeper in a ratio (digitally determined) down to 1:10{sup 6}. The experiments and preliminary results are discussed.

  9. 31 CFR 208.5 - Availability of the ETA SM.

    Science.gov (United States)

    2010-07-01

    ... ETAs SM as Treasury's Financial Agent. A Federally-insured financial institution that elects to offer... 31 Money and Finance: Treasury 2 2010-07-01 2010-07-01 false Availability of the ETA SM. 208.5... DISBURSEMENTS § 208.5 Availability of the ETA SM. An individual who receives a Federal benefit, wage, salary,...

  10. Kampen om det sibiriske smør

    DEFF Research Database (Denmark)

    Larsen, Inge Marie

    2001-01-01

    Afhandlingen følger opbygningen af og udviklingen i den vestsibiriske smørsektor og den internationale handel med sibirisk smør. Hvordan gik det til, at Rusland blev verdens næststørste smøreksportør? Indfaldsvinkelen er lokal sibirisk, national russisk og global, idet danske og engelske firmaers...

  11. A Global Corrected SRTM DEM Product Over Vegetated Areas Using LiDAR Data

    Science.gov (United States)

    Zhao, X.; Guo, Q.; Su, Y.; Hu, T.

    2016-12-01

    The Shuttle Radar Topography Mission (SRTM) digital elevation model (DEM) is one of the most complete and frequently used global-scale DEM products in various applications. However, previous studies have shown that the SRTM DEM is systematically higher than the actual land surface in vegetated mountain areas. The objective of this study is to propose a procedure to calibrate the SRTM DEM over global vegetated mountain areas. To address this, we firstly collected airborne LiDAR data over 200,000 km2 globally used as ground truth data to analyze the uncertainty of the SRTM DEM. The Geoscience Laser Altimeter System (GLAS)/ICESat (Ice, Cloud, and land Elevation Satellite) data were used as complementary data in areas lack of airborne LiDAR data. Secondly, we modelled the SRTM DEM error for each vegetation type using regression methods. Tree height, canopy cover, and terrain slope were used as dependent variables to model the SRTM DEM error. Finally, these regression models were used to estimate the SRTM DEM error in vegetated mountain areas without LiDAR data coverage, and therefore correct the SRTM DEM. Our results show that the new corrected SRTM DEM can significantly reduce the systematic bias of the SRTM DEM in vegetated mountain areas.

  12. "Doing pupil" nach Schulschluss – Videografie an einer Kinderuniversität

    Directory of Open Access Journals (Sweden)

    Alexandra König

    2015-03-01

    Full Text Available Auf der Basis einer Videografie an einer Kinderuniversität wird in dem vorliegenden Beitrag die Frage verfolgt, wie an einem außerschulischen Lernort generationale Ordnung hergestellt wird und welche Gestalt diese annimmt. Als heuristischer Rahmen dient das Modell der "Sozialisation als generationales Ordnen" (BÜHLER-NIEDERBERGER 2011; BÜHLER-NIEDERBERGER & TÜRKYILMAZ 2014. Die Analyse der ersten Sitzungen von zwei kontrastiven Kursen an der Kinder- und Jugenduniversität zeigt erstens, wie Kinder struktursensitiv Regeln in dem unbekannten Kontext erspüren, erarbeiten und modifizieren, wie sie KomplizInnen in der Herstellung generationaler Ordnung sind. Zweitens wird die Dominanz der schulischen Ordnung und des SchülerInnenstatus für Kindheit deutlich. Die Kinder stellen "Schule" her – paradoxerweise auch in einem außerschulischen Kontext. Drittens wird im kontrastiven Vergleich der untersuchten Kurse eine Varianz dieser Ordnungen – in Bezug auf die Form des Wissens und Adressierung der Kinder – herausgearbeitet, die allerdings die Dominanz der schulischen Ordnung nicht bricht. URN: http://nbn-resolving.de/urn:nbn:de:0114-fqs150263

  13. SM09A and SM09B: Romaine Lettuce Breeding Lines Resistant to Dieback and with Improved Shelf-life.

    Science.gov (United States)

    SM09A and SM09B are F8 romaine breeding lines of lettuce (Lactuca sativa L.) resistant to dieback and with good shelf-life. SM09B was selected from a cross between ‘Darkland’ and PI491224, while SM09A was developed from ‘Green Towers’ × (‘Darkland’ × PI491224). Resistance to the disease in both bree...

  14. Modelling above Ground Biomass in Tanzanian Miombo Woodlands Using TanDEM-X WorldDEM and Field Data

    Directory of Open Access Journals (Sweden)

    Stefano Puliti

    2017-09-01

    Full Text Available The use of Interferometric Synthetic Aperture Radar (InSAR data has great potential for monitoring large scale forest above ground biomass (AGB in the tropics due to the increased ability to retrieve 3D information even under cloud cover. To date; results in tropical forests have been inconsistent and further knowledge on the accuracy of models linking AGB and InSAR height data is crucial for the development of large scale forest monitoring programs. This study provides an example of the use of TanDEM-X WorldDEM data to model AGB in Tanzanian woodlands. The primary objective was to assess the accuracy of a model linking AGB with InSAR height from WorldDEM after the subtraction of ground heights. The secondary objective was to assess the possibility of obtaining InSAR height for field plots when the terrain heights were derived from global navigation satellite systems (GNSS; i.e., as an alternative to using airborne laser scanning (ALS. The results revealed that the AGB model using InSAR height had a predictive accuracy of R M S E = 24.1 t·ha−1; or 38.8% of the mean AGB when terrain heights were derived from ALS. The results were similar when using terrain heights from GNSS. The accuracy of the predicted AGB was improved when compared to a previous study using TanDEM-X for a sub-area of the area of interest and was of similar magnitude to what was achieved in the same sub-area using ALS data. Overall; this study sheds new light on the opportunities that arise from the use of InSAR data for large scale AGB modelling in tropical woodlands.

  15. Der Meteorologe : (aus dem Band "V". Tallinn 1998) / Elo Viiding ; aus dem Estnischen von Gisbert Jänicke

    Index Scriptorium Estoniae

    Viiding, Elo, 1974-

    2002-01-01

    Sisu : Die Möglichkeit des Meteorologen = Meteoroloogi võimalikkusest ; "Der Meteorologe kam 1990 in die Stadt..." = "Meteoroloog saabus linna aastal 1990..." ; "Was wäre dir "Arbeit" des Meteorologen..." = "Mis oleks meteoroloogi töö..." ; "Und ein Unglück für den Meteorologen ist es auch..." = "Ja Meteoroloogi õnnetus on veel see..." ; Angst vor dem Altwerden des Meteorologen = Hirm Meteoroloogi vanakssaamise ees ; Fest. Geschenk = Pidu. Kink ; "Wenn der Meteorologe eine Grösse sieht, ist er darüber..." = "Kui meteoroloog näeb suurust, on ta selle kohal..." ; Der Meteorologe wird im Saal erwartet = Meteoroloogi oodatakse saali ; "Das Abkommen mit der Meteorologenerwartung kündigen..." = "Katkestada leping meteoroloogiootusega..." ; "Die "Wege des Herrn" sind der Meteorologe..." = "Looja tee" on Meteoroloog..." ; Von dem Fremden, der im Saal den Meteorologen traf = Võõra lugu, kes Meteoroloogi saalis kohtas ; "Den Fremden hervorzuhusten, der von dem..." = "Köhida enesest välja võõras, kes tahtis teha..." ; Der Fremde beruhigt sich nicht = Võõras ei jää rahule

  16. Probing metastable Sm2+ and optically stimulated tunnelling emission in YPO4: Ce, Sm

    DEFF Research Database (Denmark)

    Prasad, Amit Kumar; Kook, Myung Ho; Jain, Mayank

    2017-01-01

    When the model dosimetry system YPO4: Ce3+, Sm3+ is exposed to X-rays, the charge state of the dopants changes, becoming Ce4+ and Sm2+ via hole and electron trapping, respectively which are metastable; the original charge states can be achieved through electron transfer back from Sm2+ to Ce4+ via...

  17. Fracture in sintered Sm-Co permanent magnetic materials

    Institute of Scientific and Technical Information of China (English)

    LI; Anhua(李安华); DONG; Shengzhi(董生智); LI; Wei(李卫)

    2003-01-01

    The bending strength and fracture toughness of sintered Sm-Co permanent magnetic materials are measured. A scanning electron microscope equipped with an energy dispersive X-ray analysis system is employed to investigate the bending fractography. The fracture behavior and micromechanism are discussed. The fracture behavior of sintered Sm-Co permanent magnetic materials exhibits cleavage fracture. Some Sm-rich impurities are found in fracture plane, suggesting that the Sm-rich impurities help reduce the cleavage brittleness of sintered Sm-Co permanent magnetic materials. The possible methods for improving the strength and toughness are also proposed.

  18. A photogrammetric DEM of Greenland based on 1978-1987 aerial photos: validation and integration with laser altimetry and satellite-derived DEMs

    DEFF Research Database (Denmark)

    Korsgaard, Niels Jákup; Kjær, Kurt H.; Nuth, Christopher

    50 km to ICESat laser altimetry in order to evaluate the coherency. We complement the aero-photogrammetric DEM with modern laser altimetry and DEMs derived from stereoscopic satellite imagery (AST14DMO) to examine the mass variability of the Northeast Greenland Ice Stream (NEGIS). Our analysis...

  19. Wavelet based analysis of TanDEM-X and LiDAR DEMs across a tropical vegetation heterogeneity gradient driven by fire disturbance in Indonesia

    NARCIS (Netherlands)

    Grandi, De Elsa Carla; Mitchard, Edward; Hoekman, Dirk

    2016-01-01

    Three-dimensional information provided by TanDEM-X interferometric phase and airborne Light Detection and Ranging (LiDAR) Digital ElevationModels (DEMs) were used to detect differences in vegetation heterogeneity through a disturbance gradient in Indonesia. The range of vegetation types developed

  20. [Julia Rosche. Zwischen den Fronten. Die Rolle Estlands zwischen dem Hitler-Stalin-Pakt und dem Ende des Zweiten Weltkriegs im internationalen Kontext] / Olaf Mertelsmann

    Index Scriptorium Estoniae

    Mertelsmann, Olaf, 1969-

    2014-01-01

    Arvustus: Rosche, Julia. Zwischen den Fronten. Die Rolle Estlands zwischen dem Hitler-Stalin-Pakt und dem Ende des Zweiten Weltkriegs im internationalen Kontext. Diplomica Verlag. Hamburg 2012. Unter demselben Titel mit identischem Text auch: Grin Verlag. München 2013

  1. [Julia Rosche. Zwischen den Fronten. Die Rolle Estlands zwischen dem Hitler-Stalin-Pakt und dem Ende des Zweiten Weltkriegs im internationalen Kontext] / Olaf Mertelsmann

    Index Scriptorium Estoniae

    Mertelsmann, Olaf, 1969-

    2014-01-01

    Arvustus: Rosche, Julia. Zwischen den Fronten. Die Rolle Estlands zwischen dem Hitler-Stalin-Pakt und dem Ende des Zweiten Weltkriegs im internationalen Kontext. Diplomica Verlag. Hamburg 2012. Unter demselben Titel mit identischem Text auch: Grin Verlag. München 2013

  2. Octupole collectivity in the Sm isotopes

    Energy Technology Data Exchange (ETDEWEB)

    Babilon, M. [Yale Univ., New Haven, CT (United States). Wright Nuclear Structure Lab.]|[Technische Univ. Darmstadt (Germany). Inst. fuer Kernphysik; Zamfir, N.V. [Yale Univ., New Haven, CT (United States). Wright Nuclear Structure Lab.]|[National Inst. for Physics and Nuclear Engineering, Bucharest (Romania); Kusnezov, D. [Yale Univ., New Haven, CT (United States). Sloane Physics Lab.; McCutchan, E.A. [Yale Univ., New Haven, CT (United States). Wright Nuclear Structure Lab.; Zilges, A. [Technische Univ. Darmstadt (Germany). Inst. fuer Kernphysik

    2005-08-27

    Microscopic models suggest the occurrence of strong octupole correlations in nuclei with N{approx}88. To examine the signatures of octupole correlations in this region, the spdf Interacting Boson Approximation (IBA) Model is applied to the Sm isotopes with N = 86 - 92. The effects of including multiple negative parity bosons in the basis are compared to more standard one negative parity boson calculations and are analyzed in terms of signatures for strong octupole correlations. It is found that multiple negative parity bosons are needed to describe properties at medium spin. Bands with strong octupole correlations (multiple negative parity bosons) become yrast at medium spin in {sup 148,150}Sm. This region shares some similarities with the light actinides, where strong octupole correlations were also found at medium spin. (orig.)

  3. In need of combined topography and bathymetry DEM

    Science.gov (United States)

    Kisimoto, K.; Hilde, T.

    2003-04-01

    In many geoscience applications, digital elevation models (DEMs) are now more commonly used at different scales and greater resolution due to the great advancement in computer technology. Increasing the accuracy/resolution of the model and the coverage of the terrain (global model) has been the goal of users as mapping technology has improved and computers get faster and cheaper. The ETOPO5 (5 arc minutes spatial resolution land and seafloor model), initially developed in 1988 by Margo Edwards, then at Washington University, St. Louis, MO, has been the only global terrain model for a long time, and it is now being replaced by three new topographic and bathymetric DEMs, i.e.; the ETOPO2 (2 arc minutes spatial resolution land and seafloor model), the GTOPO30 land model with a spatial resolution of 30 arc seconds (c.a. 1km at equator) and the 'GEBCO 1-MINUTE GLOBAL BATHYMETRIC GRID' ocean floor model with a spatial resolution of 1 arc minute (c.a. 2 km at equator). These DEMs are products of projects through which compilation and reprocessing of existing and/or new datasets were made to meet user's new requirements. These ongoing efforts are valuable and support should be continued to refine and update these DEMs. On the other hand, a different approach to create a global bathymetric (seafloor) database exists. A method to estimate the seafloor topography from satellite altimetry combined with existing ships' conventional sounding data was devised and a beautiful global seafloor database created and made public by W.H. Smith and D.T. Sandwell in 1997. The big advantage of this database is the uniformity of coverage, i.e. there is no large area where depths are missing. It has a spatial resolution of 2 arc minute. Another important effort is found in making regional, not global, seafloor databases with much finer resolutions in many countries. The Japan Hydrographic Department has compiled and released a 500m-grid topography database around Japan, J-EGG500, in 1999

  4. The Naturalness of the Fourth SM Family

    CERN Document Server

    Sultansoy, S

    2009-01-01

    The necessity of the fourth family follows from the SM basics. According to flavor democracy the Dirac masses of the fourth SM family fermions are almost equal with preferable value 450 GeV, which corresponds to common (for all fundamental fermions) Yukawa coupling equal to SU(2) gauge coupling gW. In principle, one expect u4 a little bit lighter than d4, while nu4 could be essentially lighter than l4 due to Majorana mass terms for right-handed components of neutrinos. Obviously, the fourth family quarks will be copiously produced at the LHC. However, the first indication of the fourth SM family may be provided by early Higgs boson observation due to almost an order enhancement of the gluon fusion to Higgs cross-section. For the same reason the Tevatron still has a chance to observe the Higgs boson before the LHC. Concerning the fourth family leptons, in general, best place will be NLC/CLIC. However, for some mass regions and MNS matrix elements double discovery of both the nu4 and H could be possible at the ...

  5. 31 CFR 585.413 - Imports of goods originating in the FRY (S&M), and purchases of goods from the FRY (S&M).

    Science.gov (United States)

    2010-07-01

    ... FRY (S&M), and purchases of goods from the FRY (S&M). 585.413 Section 585.413 Money and Finance... of goods originating in the FRY (S&M), and purchases of goods from the FRY (S&M). Goods originating in the FRY (S&M) imported into the United States pursuant to an authorization or license are...

  6. Welche Nahrungsergänzungsmittel braucht die Frau nach der Menopause?

    Directory of Open Access Journals (Sweden)

    Zyriax BC

    2012-01-01

    Full Text Available Nahrungsergänzungsmittel wie Vitamine, Mineralien, Omega-3-Fettsäuren und einige weitere Substanzen finden in den westlichen Ländern weite Verbreitung. In Deutschland nehmen 40 % der Frauen 50 Jahre regelmäßig Supplemente in der Absicht ein, eine adäquate Versorgung zu gewährleisten oder chronische Krankheiten zu vermeiden. Die Mehrheit der Verbraucher berät sich nicht mit ihrem Arzt, was zu inadäquater Dosierung, potenziellen Nebenwirkungen und Interaktionen mit Medikamenten führen kann. Im Unterschied zu Medikamenten dürfen Supplemente ohne Nachweis ihrer Wirksamkeit durch klinische Studien vertrieben werden. Bisher ist die Evidenz für die meisten Supplemente unzureichend, um ihre Anwendung zur Prävention von Krebs oder Herz-Kreislauferkrankungen zu empfehlen. Die Daten von Beobachtungsstudien sind widersprüchlich und Informationen aus randomisierten, kontrollierten Studien fehlen. Daher ist der allgemeine Gebrauch von Supplementen im täglichen Leben eine Gratwanderung zwischen Nutzen und Risiko. Hinsichtlich einer Osteoporose-Prophylaxe werden regelmäßige körperliche Aktivität und eine ausreichende Versorgung mit Kalzium aus der Nahrung und gegebenenfalls eine Supplementierung von Vitamin D empfohlen, insbesondere für Frauen nach der Menopause. Weiterhin ist unter älteren Frauen ein Mangel an Vitamin B12 aufgrund ungenügender Versorgung oder atrophischer Gastritis verbreitet. Mehr Information ist zur Einschätzung des Stellenwertes von Omega-3-Fettsäuren und B-Vitaminen zum Erhalt kognitiver Funktionen erforderlich.

  7. Research on the method of extracting DEM based on GBInSAR

    Science.gov (United States)

    Yue, Jianping; Yue, Shun; Qiu, Zhiwei; Wang, Xueqin; Guo, Leping

    2016-05-01

    Precise topographical information has a very important role in geology, hydrology, natural resources survey and deformation monitoring. The extracting DEM technology based on synthetic aperture radar interferometry (InSAR) obtains the three-dimensional elevation of the target area through the phase information of the radar image data. The technology has large-scale, high-precision, all-weather features. By changing track in the location of the ground radar system up and down, it can form spatial baseline. Then we can achieve the DEM of the target area by acquiring image data from different angles. Three-dimensional laser scanning technology can quickly, efficiently and accurately obtain DEM of target area, which can verify the accuracy of DEM extracted by GBInSAR. But research on GBInSAR in extracting DEM of the target area is a little. For lack of theory and lower accuracy problems in extracting DEM based on GBInSAR now, this article conducted research and analysis on its principle deeply. The article extracted the DEM of the target area, combined with GBInSAR data. Then it compared the DEM obtained by GBInSAR with the DEM obtained by three-dimensional laser scan data and made statistical analysis and normal distribution test. The results showed the DEM obtained by GBInSAR was broadly consistent with the DEM obtained by three-dimensional laser scanning. And its accuracy is high. The difference of both DEM approximately obeys normal distribution. It indicated that extracting the DEM of target area based on GBInSAR is feasible and provided the foundation for the promotion and application of GBInSAR.

  8. Local lysis with Alteplase for the treatment of acute embolic leg ischemia following the use of the Duett {sup trademark} closure device: preliminary results; Lokale Alteplase-Lyse zur Therapie der akuten embolischen Beinischaemie nach Einsatz des Duett {sup trademark} -Verschluss-Systems: vorlaeufige Ergebnisse

    Energy Technology Data Exchange (ETDEWEB)

    Schuermann, K.; Buecker, A.; Wingen, M.; Tacke, J.; Wein, B.; Guenther, R.W. [Klinik fuer Radiologische Diagnostik des Universitaetsklinikums der RWTH Aachen (Germany); Janssens, U. [Medizinische Klinik I (Kardiologie) des Universitaetsklinikums der RWTH Aachen (Germany)

    2004-04-01

    unter intravaskulaeren Ballonschutz der arteriellen Punktionsstelle in den Punktionskanal gespritzt wird. Bei 9 Patienten (0,64%) wurde das Prokoagulans unbemerkt in die Femoralarterie injiziert, und es trat eine akute Beinischaemie auf. Acht Patienten erhielten ueber einen kontralateralen femoralen Zugang eine lokale Alteplase-Lyse. Ein Patient wurde operiert. Im Mittel wurden 21 mg Alteplase (4-35 mg) in 14 h (4-21 h) appliziert. Der Verlauf der Lyse wurde angiographisch und klinisch kontrolliert. Die Patienten wurden nach 23 Monaten (4-35 Monaten) telefonisch befragt. Ergebnisse: Bei 3 Patienten war die Lyse vollstaendig, bei 5 Patienten verblieb wenig Restmaterial. In allen Faellen bildete sich die Ischaemiesymptomatik vollstaendig innerhalb der ersten Stunden nach Lysebeginn zurueck. In 5 Faellen trat waehrend der Lyse eine Blutung aus der mit dem Duett-System verschlossenen Punktionsstelle auf, in 2 Faellen mit Ausbildung eines falschen Aneurysmas. Dies fuehrte zum vorzeitigen Ende (n=2) oder zur Unterbrechung der Lyse (n=3). Alle Komplikationen wurden konservativ behandelt. Klinisch verblieben als Spaetfolgen bei 2 lysierten und dem operierten Patienten Par- und Hypaesthesien am Unterschenkel bzw. Fuss. (orig.)

  9. A coupled DEM-CFD method for impulse wave modelling

    Science.gov (United States)

    Zhao, Tao; Utili, Stefano; Crosta, GiovanBattista

    2015-04-01

    Rockslides can be characterized by a rapid evolution, up to a possible transition into a rock avalanche, which can be associated with an almost instantaneous collapse and spreading. Different examples are available in the literature, but the Vajont rockslide is quite unique for its morphological and geological characteristics, as well as for the type of evolution and the availability of long term monitoring data. This study advocates the use of a DEM-CFD framework for the modelling of the generation of hydrodynamic waves due to the impact of a rapid moving rockslide or rock-debris avalanche. 3D DEM analyses in plane strain by a coupled DEM-CFD code were performed to simulate the rockslide from its onset to the impact with still water and the subsequent wave generation (Zhao et al., 2014). The physical response predicted is in broad agreement with the available observations. The numerical results are compared to those published in the literature and especially to Crosta et al. (2014). According to our results, the maximum computed run up amounts to ca. 120 m and 170 m for the eastern and western lobe cross sections, respectively. These values are reasonably similar to those recorded during the event (i.e. ca. 130 m and 190 m respectively). In these simulations, the slope mass is considered permeable, such that the toe region of the slope can move submerged in the reservoir and the impulse water wave can also flow back into the slope mass. However, the upscaling of the grains size in the DEM model leads to an unrealistically high hydraulic conductivity of the model, such that only a small amount of water is splashed onto the northern bank of the Vajont valley. The use of high fluid viscosity and coarse grain model has shown the possibility to model more realistically both the slope and wave motions. However, more detailed slope and fluid properties, and the need for computational efficiency should be considered in future research work. This aspect has also been

  10. MOOCs – ein Schritt zurück, ein Schritt nach vor?

    Directory of Open Access Journals (Sweden)

    Angelika Güttl-Strahlhofer

    2015-06-01

    Full Text Available MOOCs boomen. Aber sind sie nicht ein Rückschritt beim Lernen mit digitalen Medien, diese Massenkurse mit überschaubarer Didaktik? Angelika Güttl-Strahlhofer hat sich für uns die Frage gestellt, ob bzw. inwieweit MOOCs das Lernen mit digitalen Medien voran treiben. Aktuell nehme ich an dem MOOC von Futurelearn (www.futurelearn.com der Open University, UK teil, zum Thema "Propaganda and Ideology in Everyday Life". Die Teilnahme ist kostenlos, nur für das Teilnahmezertifikat wird etwas verlangt. Angemeldet ist man in wenigen Minuten und nachdem das erledigt ist, wird man in einem hochklassigen Video von einer Universitätsprofessorin in das Thema eingeführt, nicht ganz 10 Minuten lang. Ich werde aufgefordert, meine Meinung im bereit gestellten Forum , wie das bereits etwa 1000 Personen vor mir gemacht haben, darzulegen, oder das unter dem angegebenen Twitter-Hashtag zu tun. So oder so ähnlich laufen MOOCs ab. Unter einem MOOC, im Langtext: Massive Open Online Course, versteht man einen großteils kostenfreien Kurs, der für große Personengruppen entwickelt wurde und via Internet stattfindet. Landläufig sagt man, die MOOCs kommen aus Amerika. Spricht man mit europäischen, deutschsprachigen, Weiterbildnern wird klar: ähnliche Kurse gab es auch schon in den 2000er Jahren in Europa, nur der Terminus MOOC wurde in Übersee erfunden. War zu Beginn der "MOOC-Ära" insbesondere die Vernetzung der Teilnehmenden ein Ziel, hat dies im Laufe der Zeit verglichen mit der individuellen Wissensvermittlung an Bedeutung abgenommen. Die Qualität der MOOCs variiert, genauso wie eben die Bedeutung der Vernetzung im Kurs.

  11. Comparative DEMS study on the electrochemical oxidation of carbon blacks

    DEFF Research Database (Denmark)

    Ashton, Sean James; Arenz, Matthias

    2012-01-01

    heat-treated between 2100 and 3200 °C, such as those typically used as corrosion resistant carbon (CRC) supports for polymer electrolyte membrane fuel cell (PEMFC) catalysts. A methodology combining cyclic voltammetry (CV) and differential electrochemical mass spectrometry (DEMS) is used, which allows...... the characterisation and comparison of the complete electrochemical oxidation rates and behaviours of the various carbon blacks. It is observed that the behaviour of the carbon black towards electrochemical oxidation is highly dynamic, and dependent on the properties of the pristine carbon back, the degree...

  12. DEM simulation of heat transfer in granular materials

    Science.gov (United States)

    Gui, Nan; Xu, Wenkai; Ge, Liang

    2013-07-01

    This study investigates the heat conduction of low conductivity granular particles in a two-dimensional modeling of a rotary drum using discrete element method (DEM) method. The Shannon entropy and Lagrangian mean temperature difference are used for comparative study. The results obtained by these two methods are in accordance with each other. It shows the evolution of heat conduction in rotary drums can be divided into a dynamically dominated stage and a thermodynamically dominated stage. The former is determined mainly by particle mixing and the latter is by particle-particle contact duration. The mechanisms for these two stages are explained and the heat transfer characteristics in these two stages are explored.

  13. Study of fuel element characteristic of SM and SMP (SM-PRIMA) fuel assemblies

    Energy Technology Data Exchange (ETDEWEB)

    Klinov, A.V.; Kuprienko, V.A.; Lebedev, V.A.; Makhin, V.M.; Tuchnin, L.M.; Tsykanov, V.A. [Research Institute of Atomic Reactors, Dimitrovgrad (Russian Federation)

    1999-07-01

    The paper discusses the techniques and results of reactor tests and post-reactor investigations of the SM reactor fuel elements and fuel elements developed in the process of designing the specialized PRIMA test reactor with the SM reactor fuel elements used as a prototype and which are referred to as the SMP fuel elements. The behavior of fuel elements under normal operating conditions and under deviation from normal operating conditions was studied to verify the calculation techniques, to check the calculation results during preparation of the SM reactor safety substantiation report and to estimate the possibility of using such fuel elements in other projects. During tests of fuel rods under deviation from normal operating conditions their advantages were shown over fuel elements, the components of which were produced using the Al-based alloys. (author)

  14. Accuracy of Cartosat-1 DEM and its derived attribute at multiple scale representation

    Indian Academy of Sciences (India)

    Samadrita Mukherjee; Sandip Mukherjee; A Bhardwaj; Anirban Mukhopadhyay; R D Garg; S Hazra

    2015-04-01

    Digital Elevation Model (DEM) provides basic information about terrain relief and is used for morphological characterisation, hydrological modelling and infrastructural studies. This paper investigates the accuracy of DEM and its derived attributes in multiple scales. This study was carried out for a part of Shiwalik Himalaya using Cartosat-1 stereo pair data. DEM at various cell sizes were generated and information content was compared using mean elevation, variance and entropy statistics. Various post-spacing DEMs were validated to understand variation in vertical accuracy along different scales. The vertical accuracy (3.14–7.24 m) is affected in larger spacing DEM and elevation is underestimated. Slope of terrain also has similar impacts. The DEM and slope accuracy are also affected by the terrain roughness while assessing coarser grid size.

  15. The Importance of Precise Digital Elevation Models (DEM) in Modelling Floods

    Science.gov (United States)

    Demir, Gokben; Akyurek, Zuhal

    2016-04-01

    Digital elevation Models (DEM) are important inputs for topography for the accurate modelling of floodplain hydrodynamics. Floodplains have a key role as natural retarding pools which attenuate flood waves and suppress flood peaks. GPS, LIDAR and bathymetric surveys are well known surveying methods to acquire topographic data. It is not only time consuming and expensive to obtain topographic data through surveying but also sometimes impossible for remote areas. In this study it is aimed to present the importance of accurate modelling of topography for flood modelling. The flood modelling for Samsun-Terme in Blacksea region of Turkey is done. One of the DEM is obtained from the point observations retrieved from 1/5000 scaled orthophotos and 1/1000 scaled point elevation data from field surveys at x-sections. The river banks are corrected by using the orthophotos and elevation values. This DEM is named as scaled DEM. The other DEM is obtained from bathymetric surveys. 296 538 number of points and the left/right bank slopes were used to construct the DEM having 1 m spatial resolution and this DEM is named as base DEM. Two DEMs were compared by using 27 x-sections. The maximum difference at thalweg of the river bed is 2m and the minimum difference is 20 cm between two DEMs. The channel conveyance capacity in base DEM is larger than the one in scaled DEM and floodplain is modelled in detail in base DEM. MIKE21 with flexible grid is used in 2- dimensional shallow water flow modelling. The model by using two DEMs were calibrated for a flood event (July 9, 2012). The roughness is considered as the calibration parameter. From comparison of input hydrograph at the upstream of the river and output hydrograph at the downstream of the river, the attenuation is obtained as 91% and 84% for the base DEM and scaled DEM, respectively. The time lag in hydrographs does not show any difference for two DEMs and it is obtained as 3 hours. Maximum flood extents differ for the two DEMs

  16. Effects of lidar point density on bare earth extraction and DEM creation

    Science.gov (United States)

    Puetz, Angela M.; Olsen, R. Chris; Anderson, Brian

    2009-05-01

    Data density has a crucial impact on the accuracy of Digital Elevation Models (DEMs). In this study, DEMs were created from a high point-density LIDAR dataset using the bare earth extraction module in Quick Terrain Modeler. Lower point-density LIDAR collects were simulated by randomly selecting points from the original dataset at a series of decreasing percentages. The DEMs created from the lower resolution datasets are compared to the original DEM. Results show a decrease in DEM accuracy as the resolution of the LIDAR dataset is reduced. Some analysis is made of the types of errors encountered in the lower resolution DEMs. It is also noted that the percentage of points classified as bare earth decreases as the resolution of the LIDAR dataset is reduced.

  17. Multiparametric prostate MRI for follow-up monitoring after radiation therapy; Multiparametrische MRT der Prostata zum Therapiemonitoring nach Strahlentherapie

    Energy Technology Data Exchange (ETDEWEB)

    Weidner, A.M.; Dinter, D.J.; Bohrer, M.; Sertdemir, M.; Hausmann, D.; Wenz, F.; Schoenberg, S.O. [Universitaetsmedizin Mannheim, Medizinische Fakultaet Mannheim der Universitaet Heidelberg, Institut fuer Klinische Radiologie und Nuklearmedizin, Mannheim (Germany)

    2012-03-15

    Radiation therapy is a therapeutic option with curative intent for patients with prostate cancer. Monitoring of prostate-specific antigen (PSA) values is the current standard of care in the follow-up. Imaging is recommended only for symptomatic patients and/or for further therapeutic options. For detection of local recurrence magnetic resonance imaging (MRI) of the prostate is acknowledged as the method of choice. Good results for primary diagnosis were found especially in combination with functional techniques, whereas in recurrent prostate cancer only few studies with heterogeneous study design are available for prostate MRI. Furthermore, changes in different MRI modalities due to radiation therapy have been insufficiently investigated to date. As the initial results were promising prostate MRI and available therapeutic options for detection of local recurrence should be considered in patients with increased PSA. (orig.) [German] Fuer Patienten mit Prostatakarzinom stellt die Radiatio eine potenziell kurative lokale Therapieoption dar. Im Rahmen der Nachsorge nach lokal kurativ intendierter Therapie wird aktuell der Verlauf des PSA-Werts (PSA prostataspezifisches Antigen) kontrolliert, der Einsatz bildgebender Verfahren wird lediglich bei symptomatischen Patienten und/oder zur Planung einer Salvagetherapie empfohlen. Die MRT der Prostata stellt derzeit die Methode der Wahl zur lokalen Rezidivdiagnostik dar. Insbesondere in Verbindung mit funktionellen Untersuchungstechniken zeigen Studien gute Ergebnisse in der Primaerdiagnostik. Zum Einsatz der MRT der Prostata in der Rezidivsituation wurden bisher nur wenige Studien mit heterogenem Studiendesign publiziert. Auch die in der MRT nach Bestrahlung sichtbaren Veraenderungen in den unterschiedlichen Modalitaeten sind noch wenig evaluiert. Da die ersten Studienergebnisse auch bei Patienten nach Radiatio viel versprechend sind, sollte bei unklarem PSA-Anstieg und vorhandener Therapieoption eine MRT der Prostata zur

  18. Mechanoluminescence and thermoluminescence of BaFCl:Sm 2+ and BaFBr:Sm 2+ crystals

    Science.gov (United States)

    Brahme, Nameeta; Shukla, M.; Choubey, A. K.; Kurrey, U.; Bisen, D. P.; Dhoble, S. J.

    2012-05-01

    The alkaline-earth fluorohalide crystals MFX, where M=Ca, Sr, Ba, Pb and X=Cl, Br, I, form an important class of materials crystallizing in the PbFCl-type tetragonal structure which is also called the matlockite structure. These compounds have long been of interest because of the various defect species which can be detected by spin resonance and associated techniques. The crystals were prepared by slow cooling of the melt of a stoichiometric mixture of BaF 2 and the corresponding chloride or bromide under 0.2 bar of ultrapure argon (5N5), often slightly fluorinated. We have studied the mechanoluminescence (ML) of BaFBr:Sm 2+ and BaFCl:Sm 2+ crystals. It is seen that after the impact of a moving piston, initially the ML intensity increases with time, attains a maximum value and then it decreases with time up to a particular minimum value, and then it increases again, attaining a peak value and finally disappears. The first peak lies in the deformation region and the second peak lies in the post-deformation region. The ML intensity of the BaFCl:Sm 2+ crystal is much higher than the ML intensity of the BaFBr:Sm 2+ crystal. For different impact velocities, the ML intensity increases with velocity; and the total ML intensity attains a saturation value for higher impact velocities. The total ML intensity increases with the increase in the applied load. It is suggested that the moving dislocation produced during deformation of crystals captures holes from hole-trapped centers (like H centers), and the subsequent radiative recombination of the dislocation holes with electron gives rise to ML. Thermoluminescence (TL) of BaFBr:Sm 2+ and BaFCl:Sm 2+ crystals was studied after exposure to ultraviolet rays with the help of a TLD reader. The peak of TL for the BaFBr:Sm 2+ crystal is found at ∼247°C and for BaFCl:Sm 2+ crystals at 283°C. The TL intensity initially increases with increase in the UV radiation and then it attains saturation for higher values of UV exposure. The

  19. Nachweis von Punktmutationen im TNF-alpha- und INF-gamma-Promotor bei Patienten nach allogener Stammzelltransplantation oder Knochenmarktransplantation

    OpenAIRE

    2008-01-01

    Allogene stammzelltransplantierte Patienten sind einem höherem Risiko für opportunistische Infektionen und andere Komplikationen ausgesetzt. Dabei spielt CMV eine wichtige Rolle und trägt zur Mortalität bei. Eine weitere gefürchtete Komplikation nach allogener Stammzelltransplantation ist die akute und chronische Graft-versus-Host-Disease. Angesichts der Rolle der Zytokine als Mediatorstoffe der Immunantwort ist es wichtig, ihren Einfluß auf den Auftritt und Verlauf der CMV-Infektionen und Gv...

  20. A photogrammetric DEM of Greenland based on 1978-1987 aerial photos: validation and integration with laser altimetry and satellite-derived DEMs

    Science.gov (United States)

    Korsgaard, N. J.; Kjaer, K. H.; Nuth, C.; Khan, S. A.

    2014-12-01

    Here we present a DEM of Greenland covering all ice-free terrain and the margins of the GrIS and local glaciers and ice caps. The DEM is based on the 3534 photos used in the aero-triangulation which were recorded by the Danish Geodata Agency (then the Geodetic Institute) in survey campaigns spanning the period 1978-1987. The GrIS is covered tens of kilometers into the interior due to the large footprints of the photos (30 x 30 km) and control provided by the aero-triangulation. Thus, the data are ideal for providing information for analysis of ice marginal elevation change and also control for satellite-derived DEMs.The results of the validation, error assessments and predicted uncertainties are presented. We test the DEM using Airborne Topographic Mapper (IceBridge ATM) as reference data; evaluate the a posteriori covariance matrix from the aero-triangulation; and co-register DEM blocks of 50 x 50 km to ICESat laser altimetry in order to evaluate the coherency.We complement the aero-photogrammetric DEM with modern laser altimetry and DEMs derived from stereoscopic satellite imagery (AST14DMO) to examine the mass variability of the Northeast Greenland Ice Stream (NEGIS). Our analysis suggests that dynamically-induced mass loss started around 2003 and continued throughout 2014.

  1. Effect of aging in HDPE blended with DEM in decalin

    Energy Technology Data Exchange (ETDEWEB)

    Silva, P. [Centro de Fisica, IVIC, Carretera Panamericana Km. 11, Apartado 21827, Caracas 1020-A (Venezuela); Albano, C.; Karam, A.; Vargas, M.G. [Centro de Quimica, IVIC, (Venezuela); Perera, R. [Departamento de Mecanica, Universidad Simon Bolivar, Caracas (Venezuela)

    2006-07-01

    Electron paramagnetic resonance (EPR) was used to study the effect of aging on irradiated samples of high-density polyethylene (HDPE) blended with diethyl maleate (DEM) in different proportions. Initially, we synthesize the HDPE using bis-(cyclopentadienyl) zirconium dichloride and P-MAO. The functionalization of the synthesized HDPE was carried out in a 10% weight/vol of polyethylene in decalin solution using different percentages of diethyl maleate (5, 10, 15 and 30% in weight). The samples were irradiated at 5, 15 and 30 kGy. An exponential decay in the total free radicals concentration was observed in the pure HDPE sample at the 15 and 30 kGy irradiation doses, as it was expected. For the 15 and 30 kGy irradiation doses the HDPE blended with 15 and 30% of DEM in decalin shows an increase in the total free radical concentrations as the storage time is increased. This behavior has been interpreted in terms of trapped free radicals. (Author)

  2. An efficient method for DEM-based overland flow routing

    Science.gov (United States)

    Huang, Pin-Chun; Lee, Kwan Tun

    2013-05-01

    The digital elevation model (DEM) is frequently used to represent watershed topographic features based on a raster or a vector data format. It has been widely linked with flow routing equations for watershed runoff simulation. In this study, a recursive formulation was encoded into the conventional kinematic- and diffusion-wave routing algorithms to permit a larger time increment, despite the Courant-Friedrich-Lewy condition having been violated. To meet the requirement of recursive formulation, a novel routing sequence was developed to determine the cell-to-cell computational procedure for the DEM database. The routing sequence can be set either according to the grid elevation in descending order for the kinematic-wave routing or according to the water stage of the grid in descending order for the diffusion-wave routing. The recursive formulation for 1D runoff routing was first applied to a conceptual overland plane to demonstrate the precision of the formulation using an analytical solution for verification. The proposed novel routing sequence with the recursive formulation was then applied to two mountain watersheds for 2D runoff simulations. The results showed that the efficiency of the proposed method was significantly superior to that of the conventional algorithm, especially when applied to a steep watershed.

  3. GPU based contouring method on grid DEM data

    Science.gov (United States)

    Tan, Liheng; Wan, Gang; Li, Feng; Chen, Xiaohui; Du, Wenlong

    2017-08-01

    This paper presents a novel method to generate contour lines from grid DEM data based on the programmable GPU pipeline. The previous contouring approaches often use CPU to construct a finite element mesh from the raw DEM data, and then extract contour segments from the elements. They also need a tracing or sorting strategy to generate the final continuous contours. These approaches can be heavily CPU-costing and time-consuming. Meanwhile the generated contours would be unsmooth if the raw data is sparsely distributed. Unlike the CPU approaches, we employ the GPU's vertex shader to generate a triangular mesh with arbitrary user-defined density, in which the height of each vertex is calculated through a third-order Cardinal spline function. Then in the same frame, segments are extracted from the triangles by the geometry shader, and translated to the CPU-side with an internal order in the GPU's transform feedback stage. Finally we propose a ;Grid Sorting; algorithm to achieve the continuous contour lines by travelling the segments only once. Our method makes use of multiple stages of GPU pipeline for computation, which can generate smooth contour lines, and is significantly faster than the previous CPU approaches. The algorithm can be easily implemented with OpenGL 3.3 API or higher on consumer-level PCs.

  4. Simulation of triaxial response of granular materials by modified DEM

    Science.gov (United States)

    Wang, XiaoLiang; Li, JiaChun

    2014-12-01

    A modified discrete element method (DEM) with rolling effect taken into consideration is developed to examine macroscopic behavior of granular materials in this study. Dimensional analysis is firstly performed to establish the relationship between macroscopic mechanical behavior, mesoscale contact parameters at particle level and external loading rate. It is found that only four dimensionless parameters may govern the macroscopic mechanical behavior in bulk. The numerical triaxial apparatus was used to study their influence on the mechanical behavior of granular materials. The parametric study indicates that Poisson's ratio only varies with stiffness ratio, while Young's modulus is proportional to contact modulus and grows with stiffness ratio, both of which agree with the micromechanical model. The peak friction angle is dependent on both inter-particle friction angle and rolling resistance. The dilatancy angle relies on inter-particle friction angle if rolling stiffness coefficient is sufficiently large. Finally, we have recommended a calibration procedure for cohesionless soil, which was at once applied to the simulation of Chende sand using a series of triaxial compression tests. The responses of DEM model are shown in quantitative agreement with experiments. In addition, stress-strain response of triaxial extension was also obtained by numerical triaxial extension tests.

  5. DEM modeling of flexible structures against granular material avalanches

    Science.gov (United States)

    Lambert, Stéphane; Albaba, Adel; Nicot, François; Chareyre, Bruno

    2016-04-01

    This article presents the numerical modeling of flexible structures intended to contain avalanches of granular and coarse material (e.g. rock slide, a debris slide). The numerical model is based on a discrete element method (YADE-Dem). The DEM modeling of both the flowing granular material and the flexible structure are detailed before presenting some results. The flowing material consists of a dry polydisperse granular material accounting for the non-sphericity of real materials. The flexible structure consists in a metallic net hanged on main cables, connected to the ground via anchors, on both sides of the channel, including dissipators. All these components were modeled as flexible beams or wires, with mechanical parameters defined from literature data. The simulation results are presented with the aim of investigating the variability of the structure response depending on different parameters related to the structure (inclination of the fence, with/without brakes, mesh size opening), but also to the channel (inclination). Results are then compared with existing recommendations in similar fields.

  6. Review of Digital Elevation Model (DEM) Based Research on China Loess Plateau

    Institute of Scientific and Technical Information of China (English)

    Tang Guo'an; Ge Shanshan; Li Fayuan; Zhou Jieyu

    2005-01-01

    The Loess Plateau is one of the hot research areas for its specific geographical features. In resent years, with the establishment of national multi-scale DEMs and the perfection of DEM based digital terrain analysis methods, new thoughts and methodologies have been constructed for the Loess Plateau research. This paper introduces the characteristics of DEM data, analyses the development stages of DEM applied in the Loess Plateau research, and discusses its further possible research direction. More discussions are focused on slope spectrum and its concept, as well as the significance in the Loess Plateau research.

  7. DEM Resolution Impact on the Estimation of the Physical Characteristics of Watersheds by Using SWAT

    Directory of Open Access Journals (Sweden)

    Waranyu Buakhao

    2016-01-01

    Full Text Available A digital elevation model (DEM is an important spatial input for automatic extraction of topographic parameters for the soil and water assessment tool (SWAT. The objective of this study was to investigate the impact of DEM resolution (from 5 to 90 m on the delineation process of a SWAT model with two types of watershed characteristics (flat area and mountain area and three sizes of watershed area (about 20,000, 200,000, and 1,500,000 hectares. The results showed that the total lengths of the streamline, main channel slope, watershed area, and area slope were significantly different when using the DEM datasets to delineate. Delineation using the SRTM DEM (90 m, ASTER DEM (30 m, and LDD DEM (5 m for all watershed characteristics showed that the watershed sizes and shapes obtained were only slightly different, whereas the area slopes obtained were significantly different. The total lengths of the generated streams increased when the resolution of the DEM used was higher. The stream slopes obtained using the small area sizes were insignificant, whereas the slopes obtained using the large area sizes were significantly different. This suggests that water resource model users should use the ASTER DEM as opposed to a finer resolution DEM for model input to save time for the model calibration and validation.

  8. Imaging of the late sequelae of spinal cord injuries; Radiologie von Spaetschaeden nach Rueckenmarkverletzungen

    Energy Technology Data Exchange (ETDEWEB)

    Bodley, R. [Dept. of Radiology, National Spinal Injuries Centre, Stoke Mandeville Hospital, Aylesbury (United Kingdom)

    1994-12-01

    nach Rueckenmarktraumen 2 Hauptveraenderungen entstehen: 1. atrophische und 2. zystische. Die zystischen unterteilen sich in mikrozystische oder myxoidgelaehnliche Myelomalazien, fokale Zysten und groessere meist expansive Syringomyelien. MR-Kontrollen bei insgesamt 153 Patienten, deren Rueckenmarkveletzung mehr als 20 Jahre zurueckliegt, ergaben atrophische Veraenderungen in 62%, Myelomalazien in 54%, Syringomyelien in 22%, fokale Zysten in 9% und Rueckenmarkunterbrechungen in 7%. (orig./VHE)

  9. HRCT and bronchial asthma: visualization of the pathophysiologic changes of the pulmonary parenchyma after inhalation provocation; HRCT und Asthma bronchiale: Visualisierung pathophysiologischer Veraenderungen des Lungenparenchyms nach inhalativer Provokation

    Energy Technology Data Exchange (ETDEWEB)

    Schueller, G.; Neumann, K.; Helbich, T.; Herold, C.J. [Univ. Klinik fuer Radiodiagnostik, Abt. fuer konservative Faecher, Vienna (Austria); Riemer, H. [Univ. Klinik fuer Innere Medizin IV, Abt. fuer Pulmologie, Vienna (Austria); Backfrieder, W. [Allgemeines Krankenhaus, Vienna (Austria). Inst. fuer Biomedizinische Technik und Physik; Sertl, K. [Krankenhaus der Stadt Wien-Floridsdorf (Austria). Abt. fuer Innere Medizin; Pittner, B. [Vienna Univ. (Austria). Inst. fuer Medizinische Statistik

    2004-03-01

    alterations of the lung parenchyma subsequent to inhalation provocation. In healthy individuals, these parenchymal alterations were not documented by pulmonary function tests. (orig.) [German] Ziel: Bei Patienten mit leichtem intermittierenden Asthma bronchiale, aber mit Hyperreaktivitaet auch im freien Intervall, und bei gesunden Probanden sollen mithilfe der hoch aufloesenden Computertomographie (HRCT) roentgenmorphologische Veraenderungen des Lungenparenchyms vor sowie nach inhalativer Histaminprovokation und darauf folgender Lyse durch Salbutamol charakterisiert und mit Ergebnissen von Lungenfunktionstests (FEV{sub 1}, Blutgase) verglichen werden. Methoden: Fuenfzehn Asthmatiker mit bronchialer Hyperreaktivitaet mit FEV{sub 1}-Abfall>20% und PaO{sub 2}-Abfall>10 mmHg nach Provokation (PC20%+), zwoelf Asthmatiker mit FEV{sub 1}-Abfall<20% und PaO{sub 2}-Abfall>10 mmHg nach Provokation (PC20%-) sowie acht Probanden ohne bronchiale Hyperreaktivitaet wurden mit der spirometrisch kontrollierten HRCT bei hohen Fuellungsvolumina vor und nach inhalativer Bronchoprovokation sowie nach Broncholyse untersucht. Es wurden die gesamte und periphere Lungendichte sowie der strukturelle Anteil solider pulmonaler Strukturen bestimmt. Ergebnisse: In allen Gruppen fand sich nach Provokation eine signifikante Abnahme (p<0,0005), nach Broncholyse eine signifikante Zunahme (p<0,0002) der Lungendichte. Die Aenderungen solider Lungenanteile waren nach Provokation und Lyse nicht signifikant unterschiedlich (p>0,05). Bei den hyperreaktiven Patienten fanden sich signifikante PaO{sub 2}-Abnahmen nach Provokation sowie signifikante PaO{sub 2}-Steigerungen nach Lyse (p<0,05). In der Gruppe PC20%+ wurde nach Provokatio ein mittlerer FEV{sub 1}-Abfall von 27,8% beobachtet, in den anderen Gruppen war dieser <20%. Es wurden keine signifikanten Korrelationen zwischen radiologischen und funktionellen Lungentestergebnissen asthmatischer Patienten und Probanden beobachtet. Die bei gesunden Probanden mit der

  10. Shuttle radar DEM hydrological correction for erosion modelling in small catchments

    Science.gov (United States)

    Jarihani, Ben; Sidle, Roy; Bartley, Rebecca

    2016-04-01

    Digital Elevation Models (DEMs) that accurately replicate both landscape form and processes are critical to support modelling of environmental processes. Catchment and hillslope scale runoff and sediment processes (i.e., patterns of overland flow, infiltration, subsurface stormflow and erosion) are all topographically mediated. In remote and data-scarce regions, high resolution DEMs (LiDAR) are often not available, and moderate to course resolution digital elevation models (e.g., SRTM) have difficulty replicating detailed hydrological patterns, especially in relatively flat landscapes. Several surface reconditioning algorithms (e.g., Smoothing) and "Stream burning" techniques (e.g., Agree or ANUDEM), in conjunction with representation of the known stream networks, have been used to improve DEM performance in replicating known hydrology. Detailed stream network data are not available at regional and national scales, but can be derived at local scales from remotely-sensed data. This research explores the implication of high resolution stream network data derived from Google Earth images for DEM hydrological correction, instead of using course resolution stream networks derived from topographic maps. The accuracy of implemented method in producing hydrological-efficient DEMs were assessed by comparing the hydrological parameters derived from modified DEMs and limited high-resolution airborne LiDAR DEMs. The degree of modification is dominated by the method used and availability of the stream network data. Although stream burning techniques improve DEMs hydrologically, these techniques alter DEM characteristics that may affect catchment boundaries, stream position and length, as well as secondary terrain derivatives (e.g., slope, aspect). Modification of a DEM to better reflect known hydrology can be useful, however, knowledge of the magnitude and spatial pattern of the changes are required before using a DEM for subsequent analyses.

  11. Uncertainty of soil erosion modelling using open source high resolution and aggregated DEMs

    Directory of Open Access Journals (Sweden)

    Arun Mondal

    2017-05-01

    Full Text Available Digital Elevation Model (DEM is one of the important parameters for soil erosion assessment. Notable uncertainties are observed in this study while using three high resolution open source DEMs. The Revised Universal Soil Loss Equation (RUSLE model has been applied to analysis the assessment of soil erosion uncertainty using open source DEMs (SRTM, ASTER and CARTOSAT and their increasing grid space (pixel size from the actual. The study area is a part of the Narmada river basin in Madhya Pradesh state, which is located in the central part of India and the area covered 20,558 km2. The actual resolution of DEMs is 30 m and their increasing grid spaces are taken as 90, 150, 210, 270 and 330 m for this study. Vertical accuracy of DEMs has been assessed using actual heights of the sample points that have been taken considering planimetric survey based map (toposheet. Elevations of DEMs are converted to the same vertical datum from WGS 84 to MSL (Mean Sea Level, before the accuracy assessment and modelling. Results indicate that the accuracy of the SRTM DEM with the RMSE of 13.31, 14.51, and 18.19 m in 30, 150 and 330 m resolution respectively, is better than the ASTER and the CARTOSAT DEMs. When the grid space of the DEMs increases, the accuracy of the elevation and calculated soil erosion decreases. This study presents a potential uncertainty introduced by open source high resolution DEMs in the accuracy of the soil erosion assessment models. The research provides an analysis of errors in selecting DEMs using the original and increased grid space for soil erosion modelling.

  12. 无人机遥感技术制作 DEM 新方法%The New Method of UAV Remote Sensing Producing DEM

    Institute of Scientific and Technical Information of China (English)

    柏飞

    2015-01-01

    UAV remote sensing technology to rapidly produce surface model DSM ,due to the existence of the survey area was surface features ,surface model can not substitute DEM ,this paper using a laser point cloud processing software terrasolid software ,through the elevation point cloud classification algorithm for data classification ,by people mutual fast machine to extract ground points make DEM.%无人机遥感技术能够快速制作地表模型DSM ,由于测区地物的存在,地表模型不能替代DEM ,本文提出利用激光点云处理软件 Terrasolid软件,通过高程分类算法对点云数据进行分类,通过人机互助快速提取出地面点制作DEM

  13. Digital Elevation Model (DEM), GRID derived from USGS .dem, Published in 2007, 1:600 (1in=50ft) scale, Shawnee County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Digital Elevation Model (DEM) dataset, published at 1:600 (1in=50ft) scale, was produced all or in part from LIDAR information as of 2007. It is described as...

  14. Digital Elevation Model (DEM), 5 Meter Auto-correlated DEM, Published in 2006, 1:24000 (1in=2000ft) scale, State of Utah Automated Geographic Reference Center.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Digital Elevation Model (DEM) dataset, published at 1:24000 (1in=2000ft) scale, was produced all or in part from Other information as of 2006. It is described...

  15. Digital Elevation Model (DEM), 2 Meter LIDAR Bare Earth DEM, Published in 2006, 1:12000 (1in=1000ft) scale, State of Utah Automated Geographic Reference Center.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Digital Elevation Model (DEM) dataset, published at 1:12000 (1in=1000ft) scale, was produced all or in part from LIDAR information as of 2006. It is described...

  16. Digital Elevation Model (DEM), Allegany County DEM 10 ft pixel, Published in 2005, 1:1200 (1in=100ft) scale, Allegany County Government.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Digital Elevation Model (DEM) dataset, published at 1:1200 (1in=100ft) scale, was produced all or in part from LIDAR information as of 2005. It is described as...

  17. Evaluation of ASTER GDEM2 in Comparison with GDEM1, SRTM DEM and Topographic-Map-Derived DEM Using Inundation Area Analysis and RTK-dGPS Data

    Directory of Open Access Journals (Sweden)

    Beni Raharjo

    2012-08-01

    Full Text Available This study evaluates the quality of the Advanced Spaceborne Thermal Emission Radiometer-Global Digital Elevation Model version 2 (ASTER GDEM2 in comparison with the previous version (GDEM1 as well as the Shuttle Radar Topographic Mission (SRTM DEM and topographic-map-derived DEM (Topo-DEM using inundation area analysis for the projected location of the Karian dam, Indonesia. In addition, the vertical accuracy of each DEM is evaluated using the Real-Time Kinematic differential Global Positioning Systems (RTK-dGPS data obtained from an intensive geodetic survey. The results of the inundation area analysis show that GDEM2 produced a higher maximum contour level (MCL (64 m than did GDEM1 (55 m, and thus, GDME2 has a better quality. In addition, the GDEM2-derived MCL is similar to those produced by SRTM DEM (69 m and Topo-DEM (62 m. The improvement in the contour level in GDEM2 is believed to be related to the successful removal of voids (artifacts and anomalies present in GDEM1. However, our RTK-dGPS results show that the vertical accuracy of GDEM2 is much lower than that of GDEM1 and the other DEMs, which is contradictory to the accuracy stated in the GDEM2 validation document. The vertical profiles of all DEMs show that GDEM2 contains a comparatively large number of undulation effects, thereby resulting in higher root mean square error (RMSE values. These undulation effects may have been introduced during the GDEM2 validation process. Although the results of this study may be site-specific, it is important that they be considered for the improvement of the next GDEM version.

  18. DEM simulations of die filling during pharmaceutical tabletting

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    The flow behaviour of powders from a stationary shoe into a moving die, which mimics the die filling process in a rotary tablet press, was analysed using a discrete element method (DEM), in which 2D irregular shaped particles were considered. The influence of the particle shape,size and size distribution, the number of particles used in the simulation, the initial height of powder bed in the shoe, and the filling speed on the average mass flow rate and the critical filling speed (the highest speed at which the die can be completely filled) were explored. It has been found that a maximum flow rate is obtained at the critical filling speed for all systems investigated and poly-disperse systems have higher mass flow rates and higher critical filling speeds than mono-disperse systems. In addition, the powder with particles which can tessellate generally has a lower filling rate and a lower critical filling speed.

  19. Vibration induced flow in hoppers: DEM 2D polygon model

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    A two-dimensional discrete element model (DEM) simulation of cohesive polygonal particles has been developed to assess the benefit of point source vibration to induce flow in wedge-shaped hoppers. The particle-particle interaction model used is based on a multi-contact principle.The first part of the study investigated particle discharge under gravity without vibration to determine the critical orifice size (Be) to just sustain flow as a function of particle shape. It is shown that polygonal-shaped particles need a larger orifice than circular particles. It is also shown that Be decreases as the number of particle vertices increases. Addition of circular particles promotes flow of polygons in a linear manner.The second part of the study showed that vibration could enhance flow, effectively reducing Be. The model demonstrated the importance of vibrator location (height), consistent with previous continuum model results, and vibration amplitude in enhancing flow.

  20. Modeling slow deformation of polygonal particles using DEM

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    We introduce two improvements in the numerical scheme to simulate collision and slow shearing of irregular particles. First, we propose an alternative approach based on simple relations to compute the frictional contact forces. The approach improves efficiency and accuracy of the Discrete Element Method (DEM) when modeling the dynamics of the granular packing. We determine the proper upper limit for the integration step in the standard numerical scheme using a wide range of material parameters. To this end, we study the kinetic energy decay in a stress controlled test between two particles. Second, we show that the usual way of defining the contact plane between two polygonal particles is, in general, not unique which leads to discontinuities in the direction of the contact plane while particles move. To solve this drawback, we introduce an accurate definition for the contact plane based on the shape of the overlap area between touching particles, which evolves continuously in time.

  1. Influence of dem in Watershed Management as Flood Zonation Mapping

    Science.gov (United States)

    Alrajhi, Muhamad; Khan, Mudasir; Afroz Khan, Mohammad; Alobeid, Abdalla

    2016-06-01

    Despite of valuable efforts from working groups and research organizations towards flood hazard reduction through its program, still minimal diminution from these hazards has been realized. This is mainly due to the fact that with rapid increase in population and urbanization coupled with climate change, flood hazards are becoming increasingly catastrophic. Therefore there is a need to understand and access flood hazards and develop means to deal with it through proper preparations, and preventive measures. To achieve this aim, Geographical Information System (GIS), geospatial and hydrological models were used as tools to tackle with influence of flash floods in the Kingdom of Saudi Arabia due to existence of large valleys (Wadis) which is a matter of great concern. In this research paper, Digital Elevation Models (DEMs) of different resolution (30m, 20m,10m and 5m) have been used, which have proven to be valuable tool for the topographic parameterization of hydrological models which are the basis for any flood modelling process. The DEM was used as input for performing spatial analysis and obtaining derivative products and delineate watershed characteristics of the study area using ArcGIS desktop and its Arc Hydro extension tools to check comparability of different elevation models for flood Zonation mapping. The derived drainage patterns have been overlaid over aerial imagery of study area, to check influence of greater amount of precipitation which can turn into massive destructions. The flow accumulation maps derived provide zones of highest accumulation and possible flow directions. This approach provide simplified means of predicting extent of inundation during flood events for emergency action especially for large areas because of large coverage area of the remotely sensed data.

  2. Evaluating Error of LIDAR Derived dem Interpolation for Vegetation Area

    Science.gov (United States)

    Ismail, Z.; Khanan, M. F. Abdul; Omar, F. Z.; Rahman, M. Z. Abdul; Mohd Salleh, M. R.

    2016-09-01

    Light Detection and Ranging or LiDAR data is a data source for deriving digital terrain model while Digital Elevation Model or DEM is usable within Geographical Information System or GIS. The aim of this study is to evaluate the accuracy of LiDAR derived DEM generated based on different interpolation methods and slope classes. Initially, the study area is divided into three slope classes: (a) slope class one (0° - 5°), (b) slope class two (6° - 10°) and (c) slope class three (11° - 15°). Secondly, each slope class is tested using three distinctive interpolation methods: (a) Kriging, (b) Inverse Distance Weighting (IDW) and (c) Spline. Next, accuracy assessment is done based on field survey tachymetry data. The finding reveals that the overall Root Mean Square Error or RMSE for Kriging provided the lowest value of 0.727 m for both 0.5 m and 1 m spatial resolutions of oil palm area, followed by Spline with values of 0.734 m for 0.5 m spatial resolution and 0.747 m for spatial resolution of 1 m. Concurrently, IDW provided the highest RMSE value of 0.784 m for both spatial resolutions of 0.5 and 1 m. For rubber area, Spline provided the lowest RMSE value of 0.746 m for 0.5 m spatial resolution and 0.760 m for 1 m spatial resolution. The highest value of RMSE for rubber area is IDW with the value of 1.061 m for both spatial resolutions. Finally, Kriging gave the RMSE value of 0.790m for both spatial resolutions.

  3. Two Preliminary SRTM DEMs Within the Amazon Basin

    Science.gov (United States)

    Alsdorf, D.; Hess, L.; Melack, J.; Dunne, T.; Mertes, L.; Ballantine, A.; Biggs, T.; Holmes, K.; Sheng, Y.; Hendricks, G.

    2002-12-01

    Digital topography provides important measures, such as hillslope lengths and flow path networks, for understanding hydrologic and geomorphic processes (e.g., runoff response to land use change and floodplain inundation volume). Two preliminary Shuttle Radar Topography Mission digital elevation models of Manaus (1S to 5S and 59W to 63W) and Rondonia (9S to 12S and 61W to 64W) were received from NASA JPL in August 2002. The "PI Processor" produced these initial DEM segments and we are using them to assess the initial accuracy of the interferometrically derived heights and for hydrologic research. The preliminary SRTM derived absolute elevations across the Amazon floodplain in the Cabaliana region generally range from 5 to 15 m with reported errors of 1 to 3 m. This region also includes some preliminary elevations that are erroneously negative. However, topographic contours on 1:100,000 scale quadrangles of 1978 to 1980 vintage indicate elevations of 20 to 30 m. Because double-bounce travel paths are possible over the sparsely vegetated and very-flat 2400 sq-km water surface of the Balbina reservoir near Manaus, it serves to identify the relative accuracy of the SRTM heights. Here, cell-to-cell height changes are generally 0 to 1 m and changes across a ~100 km transect rarely exceed 3 m. Reported errors throughout the transect range from 1 to 2 m with some errors up to 5 m. Deforestation in Rondonia is remarkably clear in the C-band DEM where elevations are recorded from the canopy rather than bare earth. Here, elevation changes are ~30 m (with reported 1 to 2 m errors) across clear-cut areas. Field derived canopy heights are in agreement with this change. Presently, we are deriving stream networks in the Amazon floodplain for comparison with our previous network extraction from JERS-1 SAR mosaics and for hydrologic modeling.

  4. EVALUATING ERROR OF LIDAR DERIVED DEM INTERPOLATION FOR VEGETATION AREA

    Directory of Open Access Journals (Sweden)

    Z. Ismail

    2016-09-01

    Full Text Available Light Detection and Ranging or LiDAR data is a data source for deriving digital terrain model while Digital Elevation Model or DEM is usable within Geographical Information System or GIS. The aim of this study is to evaluate the accuracy of LiDAR derived DEM generated based on different interpolation methods and slope classes. Initially, the study area is divided into three slope classes: (a slope class one (0° – 5°, (b slope class two (6° – 10° and (c slope class three (11° – 15°. Secondly, each slope class is tested using three distinctive interpolation methods: (a Kriging, (b Inverse Distance Weighting (IDW and (c Spline. Next, accuracy assessment is done based on field survey tachymetry data. The finding reveals that the overall Root Mean Square Error or RMSE for Kriging provided the lowest value of 0.727 m for both 0.5 m and 1 m spatial resolutions of oil palm area, followed by Spline with values of 0.734 m for 0.5 m spatial resolution and 0.747 m for spatial resolution of 1 m. Concurrently, IDW provided the highest RMSE value of 0.784 m for both spatial resolutions of 0.5 and 1 m. For rubber area, Spline provided the lowest RMSE value of 0.746 m for 0.5 m spatial resolution and 0.760 m for 1 m spatial resolution. The highest value of RMSE for rubber area is IDW with the value of 1.061 m for both spatial resolutions. Finally, Kriging gave the RMSE value of 0.790m for both spatial resolutions.

  5. Zur Internationalität der Pädagogischen Psychologie aus dem deutschsprachigen Bereich

    OpenAIRE

    Krampen, Günter; Schui, Gabriel

    2007-01-01

    Vor dem Hintergrund der Internationalisierungsdebatte der Psychologie in den deutschsprachigen Ländern wird der Internationalisierungsgrad der Pädagogischen Psychologie im Vergleich zur gesamten psychologischen Forschung aus dem deutschsprachigen Bereich unter zwei Perspektiven bibliometrisch untersucht: Zum ersten geht es inhaltlich um die Entwicklung der englischsprachigen Anteile der in PSYNDEX unter der Klassifikation "Pädagogische Psychologie" dokumentierten Literatur, zum zweiten um Ana...

  6. Evaluating the influence of spatial resolutions of DEM on watershed runoff and sediment yield using SWAT

    Indian Academy of Sciences (India)

    A Sivasena Reddy; M Janga Reddy

    2015-10-01

    Digital elevation model (DEM) of a watershed forms key basis for hydrologic modelling and its resolution plays a key role in accurate prediction of various hydrological processes. This study appraises the effect of different DEMs with varied spatial resolutions (namely TOPO 20 m, CARTO 30 m, ASTER 30 m, SRTM 90 m, GEO-AUS 500 m and USGS 1000 m) on hydrological response of watershed using Soil and Water Assessment Tool (SWAT) and applied for a case study of Kaddam watershed in India for estimating runoff and sediment yield. From the results of case study, it was observed that reach lengths, reach slopes, minimum and maximum elevations, sub-watershed areas, land use mapping areas within the sub-watershed and number of HRUs varied substantially due to DEM resolutions, and consequently resulted in a considerable variability in estimated daily runoff and sediment yields. It was also observed that, daily runoff values have increased (decreased) on low (high) rainy days respectively with coarser resolution of DEM. The daily sediment yield values from each sub-watershed decreased with coarser resolution of the DEM. The study found that the performance of SWAT model prediction was not influenced much for finer resolution DEMs up to 90 m for estimation of runoff, but it certainly influenced the estimation of sediment yields. The DEMs of TOPO 20 m and CARTO 30 m provided better estimates of sub-watershed areas, runoff and sediment yield values over other DEMs.

  7. Gedichte / [Konnula, Margus] Contra ; aus dem Estnischen von Gisbert Jänicke

    Index Scriptorium Estoniae

    Contra, pseud., 1974-

    2002-01-01

    Sisu : Die Nacht auf dem Busbahnhof = Öö bussijaamas ; Ich bin schwarz und schmutzig = Olen must ja räpane ; "wir sind da auf dem bild..." = "oleme siin pildi peal..." ; Lebensgrundlage = Elu alus ; Der Volksvertreter = Rahvaasemik ; Das Messer hinterm Rücken in der Hand = Selja taga nuga käes ; Wo = Kus ; Gute Nachbarn = Head naabrid

  8. Dementia-free life expectancy (demFLE) in the Netherlands

    NARCIS (Netherlands)

    Perenboom, R.J.M.; Boshuizen, H.C.; Breteler, M.M.B.; Alewijn, O.; Water, H.P.A. van de

    1996-01-01

    To gain an insight into the burden of dementia in an aging society, life expectancy with dementia and its counterpart dementia-free life expectancy (DemFLE) in The Netherlands are presented. Sullivan's method was used to calculate DemFLE. For elderly living either independently or in homes for the e

  9. Flow Dynamics of green sand in the DISAMATIC moulding process using Discrete element method (DEM)

    DEFF Research Database (Denmark)

    Hovad, Emil; Larsen, P.; Walther, Jens Honore

    2015-01-01

    The DISAMATIC casting process production of sand moulds is simulated with DEM (discrete element method). The main purpose is to simulate the dynamics of the flow of green sand, during the production of the sand mould with DEM. The sand shot is simulated, which is the first stage of the DISAMATIC...

  10. ICESAT VALIDATION OF TANDEM-X I-DEMS OVER THE UK

    Directory of Open Access Journals (Sweden)

    L. Feng

    2016-06-01

    Full Text Available From the latest TanDEM-X mission (bistatic X-Band interferometric SAR, globally consistent Digital Elevation Model (DEM will be available from 2017, but their accuracy has not yet been fully characterised. This paper presents the methods and implementation of statistical procedures for the validation of the vertical accuracy of TanDEM-X iDEMs at grid-spacing of approximately 12.5 m, 30 m and 90 m based on processed ICESat data over the UK in order to assess their potential extrapolation across the globe. The accuracy of the TanDEM-X iDEM in UK was obtained as follows: against ICESat GLA14 elevation data, TanDEM-X iDEM has −0.028±3.654 m over England and Wales and 0.316 ± 5.286 m over Scotland for 12 m, −0.073 ± 6.575 m for 30 m, and 0.0225 ± 9.251 m at 90 m. Moreover, 90 % of all results at the three resolutions of TanDEM-X iDEM data (with a linear error at 90 % confidence level are below 16.2 m. These validation results also indicate that derivative topographic parameters (slope, aspect and relief have a strong effect on the vertical accuracy of the TanDEM-X iDEMs. In high-relief and large slope terrain, large errors and data voids are frequent, and their location is strongly influenced by topography, whilst in the low- to medium-relief and low slope sites, errors are smaller. ICESat derived elevations are heavily influenced by surface slope within the 70 m footprint as well as there being slope dependent errors in the TanDEM-X iDEMs.

  11. Icesat Validation of Tandem-X I-Dems Over the UK

    Science.gov (United States)

    Feng, L.; Muller, J.-P.

    2016-06-01

    From the latest TanDEM-X mission (bistatic X-Band interferometric SAR), globally consistent Digital Elevation Model (DEM) will be available from 2017, but their accuracy has not yet been fully characterised. This paper presents the methods and implementation of statistical procedures for the validation of the vertical accuracy of TanDEM-X iDEMs at grid-spacing of approximately 12.5 m, 30 m and 90 m based on processed ICESat data over the UK in order to assess their potential extrapolation across the globe. The accuracy of the TanDEM-X iDEM in UK was obtained as follows: against ICESat GLA14 elevation data, TanDEM-X iDEM has -0.028±3.654 m over England and Wales and 0.316 ± 5.286 m over Scotland for 12 m, -0.073 ± 6.575 m for 30 m, and 0.0225 ± 9.251 m at 90 m. Moreover, 90 % of all results at the three resolutions of TanDEM-X iDEM data (with a linear error at 90 % confidence level) are below 16.2 m. These validation results also indicate that derivative topographic parameters (slope, aspect and relief) have a strong effect on the vertical accuracy of the TanDEM-X iDEMs. In high-relief and large slope terrain, large errors and data voids are frequent, and their location is strongly influenced by topography, whilst in the low- to medium-relief and low slope sites, errors are smaller. ICESat derived elevations are heavily influenced by surface slope within the 70 m footprint as well as there being slope dependent errors in the TanDEM-X iDEMs.

  12. Global Maps from Interferometeric TanDEM-X Data: Applications and Potentials

    Science.gov (United States)

    Rizzoli, Paola; Martone, Michele; Brautigam, Benjamin; Zink, Manfred

    2015-05-01

    TanDEM-X is a spaceborne Synthetic Aperture Radar (SAR) mission, whose goal is the generation of a global Digital Elevation Model (DEM) with unprecedented accuracy, by using interferometric SAR (InSAR) techniques (InSAR). TanDEM-X offers a huge global data set of bistatic InSAR acquisitions, each of them supplemented by quick look images of different SAR quantities, such as amplitude, coherence, and DEM. Global quick look mosaics of the interferometric coherence and of the relative height error can be considered for mission performance monitoring and acquisition strategy optimization. The aim of this paper is to present the use of such mosaics within the TanDEM-X mission and to show their potentials for future scientific applications for example in the fields of glaciology and forestry.

  13. Die Rolle der Glukosetransporter an der Blut-Hirn-Schranke nach einem Schädel-Hirn-Trauma und deren eventueller Einfluss auf die Entwicklung eines sekundären Hirnödems

    OpenAIRE

    Wais, Sebastian

    2013-01-01

    Laut der Weltgesundheitsorganisation (WHO) waren in Deutschland 2006 akute ischämische Ereignisse des Zentralen Nervensystems (ZNS) die fünfthäufigste Todesursache. Zu diesen ischämischen Ereignissen zählen Schlaganfall, Kardiopulmonale Reanimation, traumatische Hirnverletzungen, sowie perioperative ischämische Komplikationen. Aufgrund der schwerwiegenden Folgen, die ein Verlust von Nervenzellen für den Patienten bedeutet, muss die weitere medizinische Akutversorgung den sekundären neuronalen...

  14. After swimming one goes on the ice. Multifunctional complex of sports and leisure uses energetic synergies; Nach dem Schwimmen geht's aufs Eis. Multifunktionaler Sport- und Freizeitkomplex nutzt energetische Synergien

    Energy Technology Data Exchange (ETDEWEB)

    Jaeger, Frank Peter [Redaktionbuero Archikontext, Berlin (Germany); Vonseelen, Tanja

    2012-11-01

    In Lentpark (Cologne, Federal Republic of Germany) skating and swimming are combined in one building - an unusual combination of use with tradition in Cologne. Recently the bureau Schulitz Architecture + Technology (Braunschweig, Federal Republic of Germany) designed the completed new building of the ice ring and swimming hall. The new building develops the energetic synergies of the coexistence of ice preparation and water heating. The new building was commissioned by KoelnBaeder GmbH (Cologne, Federal Republic of Germany) and is a unique of modern skating arena with spectacular ice overhead way, swimming pool and sauna in Europe.

  15. Search for solar axions with the X-ray telescope of the CAST experiment (phase II); Suche nach solaren Axionen mit dem Roentgenteleskop des CAST-Experiments (Phase II)

    Energy Technology Data Exchange (ETDEWEB)

    Nordt, Annika

    2009-10-14

    The CAST (CERN Solar Axion Telescope) experiment is searching for solar axions by their conversion into photons inside a transverse magnetic field. So far, no solar axionsignal has been detected, but a new upper limit could be given (CAST Phase I). Since 2005, CAST entered in its second phase where it operates with a buffer gas ({sup 4}He) in the conversion region to extend the sensitivity of the experiment to higher axionmasses. For the first time it is possible to enter the theoretically favored axion massrange and to give an upper limit for this solar axion mass-range (>0.02 eV). This thesis is about the analysis of the X-ray telescope data Phase II with {sup 4}He inside the magnet. The result for the coupling constant of axions to photons is: g{sub {alpha}}{sub {gamma}}{sub {gamma}}<1.6-6.0 x 10{sup -10} GeV{sup -1} (95%C.L.) for m{sub a}=0.02-0.4 eV. (2) This result is better than any result that has been given before in this mass range for solar axions. (orig.)

  16. The contribution of high-temperature pyrolysis to industrial development after World War II. From coal chemistry to petrochemistry; Der Beitrag des Hochtemperatur-Pyrolyse-Verfahrens zu dieser Entwicklung nach dem Zweiten Weltkrieg. Der Wandel von der Kohlen- zur Petrochemie

    Energy Technology Data Exchange (ETDEWEB)

    Wetzel, W.

    2001-03-01

    After the Second World War when the base of raw materials had changed from coal to petrol, the chemical industry was confronted with crucial technological problems: Whilst acetylen derived from coal had, due to the increased cost of coal and energy, turned to be more and more non-profitable ethylen as a crack-product of naphta succeeded in being steadily produced in a more profitable way and therefore came to be the most important base-product for aliphatic and macro-molecular chemistry. In Germany, however, to begin with, hydrocarbon fractions for producing ethylen were not available in sufficient quantities: Moreover there were no chemical procedures in order to manufacture derivates based on ethylen. This economical situation led to the development of a petrochemical procedure simultaneously producing acetylen as well as ethylen: The so-called 'High-temperature-pyrolysis' ('HTP') with a capacity of 82,000 tons p.a. including both monomeres. The report takes into consideration thermodynamical aspects of the cracking reaction, describes the procedure and its historical development and ends in viewing the efforts of that time to transfer the HTP-principle to the cracking of crude oil. (orig.)

  17. The plan requirement as a demand of the reimbursement rate for solar parks according to EEG 2012; Das Planerfordernis als Voraussetzung der Einspeiseverguetung fuer Solarparks nach dem EEG 2012

    Energy Technology Data Exchange (ETDEWEB)

    Geiger, Stefan [Sozietaet WKN, Hamburg (Germany); Bauer, Philipp Joseph [Humboldt Univ., Berlin (Germany)

    2012-02-15

    On 1st January 2012, the fundamentally amended Renewable Energy Act 2012 comes into effect. In this, the regulations of the compensation events for photovoltaic systems have been designed newly. In addition to a systematic reorganization of paragraph 32 and 33 EEG also substantive changes were performed, especially in the remuneration of solar farms. The substantive changes apply are valid for installations being established after 31st December, 2011. In accordance with paragraph 66 sect. 1 EEG 2012, the existing regulations are to be applied to old sites.

  18. After the M/441 and the M/490 mandate. Technical solutions for smart metering and testing their data models; Nach dem M/441 und M/490. Technische Loesungen im Smart Metering und ihre Testbarkeit und Datenmodelle

    Energy Technology Data Exchange (ETDEWEB)

    Uslar, Mathias [TUeV SUeD AG, Muenchen (Germany). Embedded Systems; Hahn, Royth von [OFFIS, Oldenburg (Germany). Gruppe Interoperabilitaet und Standardisierung

    2012-07-01

    This contribution focuses on the overview on how the current trends in smart metering influencing todays market in both Germany and Europe. With the mandates on smart grid and smart meters, M/490 respectively M/441 and their results, the technical view on the future of grid automation has become more clear. However, different aspects still have to be discussed which will be introduced in this contribution. (orig.)

  19. Atomic energy law after the opt-out. Alive and fascinating. Report about the 14{sup th} German atomic energy law symposium 2012; Atomrecht nach dem Ausstieg. Lebendig und spannend. Tagungsbericht 14. Deutsches Atomrechtssymposium 2012

    Energy Technology Data Exchange (ETDEWEB)

    Leidinger, Tobias [Gleiss Lutz Rechtsanwaelte, Duesseldorf (Germany)

    2013-01-15

    Atomic energy law remains a living, fascinating subject matter. Nearly 200 participants were convinced of this impression at the 14{sup th} German Atomic Energy Law Symposium held in Berlin on November 19-20, 2012. Under the scientific chairmanship of Professor Dr. Martin Burgi, Ludwig Maximilian University of Munich, the German Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU), after an interruption of 5 years, again organized a scientific conference about practice-related topics of atomic energy and radiation protection law. Atomic energy law once again proved to be a reference area for sophisticated issues of constitutional law and administrative law above and beyond its technical confines. The agenda of the 14{sup th} German Atomic Energy Law Symposium featured a broad spectrum of topics ranging from backfitting of nuclear power plants to European atomic energy and radiation protection law, to challenges facing national legal systems in the execution of atomic energy law, to legal issues connected with decommissioning and waste management, and on to the topical subject of finding a repository site. The 14{sup th} German Atomic Energy Law Symposium, on the whole, again demonstrated that an open discourse between science and practice is able to furnish important contributions to the implementation of laws in a balanced way rooted in practice. Especially the contributions dealing with the independence of public authorities and their organization, the doctrine of the reservation of functions of the executive branch, and planning by laws contain additional provisions able to influence the continued development of administrative law also above and beyond atomic energy law. The BMU also referred to a decision just heard from Brussels to the effect that a new European Safety Directive would be published as early as in 2013. As a consequence of the nuclear stress tests conducted EU-wide, the Directive is to lay down provisions about transparency, material safety standards, and the separation of regulatory and supervisory authorities. In this way, the Commission opens up a broad field of topics which will ensure, also beyond the 14{sup th} German Atomic Energy Law Symposium, that atomic energy law will remain a living, fascinating subject matter. (orig.)

  20. IODINE-129 in soils from northern Ukraine and the retrospective dosimetry of the IODINE-131 exposure after the Chernobyl accident; IODINE-129 in Boeden der noerdlichen Ukraine und die retrospektive Dosimetrie der IODINE-131-Exposition nach dem Unfall von Tschernobyl

    Energy Technology Data Exchange (ETDEWEB)

    Daraoui, A.; Michel, R.; Gorny, M.; Jakob, D.; Korntheuer, J.; Sachse, R. [Zentrum fuer Strahlenschutz and Radiooekologie, Leibniz Univ. Hannover (Germany); Alfimov, V.; Synal, H.A. [Lab. fuer Ionenstrahlphysik (LIP), ETH Zuerich (Switzerland)

    2009-07-01

    With the help of the long-lived {sup 129}I a retrospective dosimetry of the {sup 131}I exposure after the Chernobyl accident can be achieved in the highly contaminated zone in Ukraine. 300 soil samples down to a depth of 40 cm and 3 soil profiles to a depth of 200 cm were taken from 60 villages in contamination zone II und III in northern Ukraine in 2004 and 2007. {sup 129}I/{sup 127}I was analysed by AMS and {sup 127}I was determined by ICP-MS. The results from the soil profiles show that more than 90% of the {sup 129}I-concentrations in the soil profiles are still located in the top 40 cm of the profiles. This allows using the {sup 129}I inventories in the soil samples down to 40 cm depth as proxies for the total anthropogenic {sup 129}I inventories. The {sup 129}I- und {sup 137}Cs- inventories are correlated in the highly contaminated areas. However, the variability of the {sup 129}I/{sup 137}Cs ratios is large, so that for the retrospective dosimetry one has to rely on {sup 129}I. In 35 villages in the contamination zone II, the mean thyroid doses were 1.9 x 3.2{sup {+-}}{sup 1} Gy for 5-year-old children and 0.45 x 3.2{sup {+-}}{sup 1} Gy for adults. In 25 locations in the contamination zone III, the mean thyroid doses were 0.75 x 1.9{sup {+-}}{sup 1} Gy for 5-year-old children and 0.18 x 1.9{sup {+-}}{sup 1} Gy for adults. (orig.)

  1. Control system for hot water preparing on flow rate principle. Force PT C pressure- and thermostat control system; Regler fuer die Warmwasserbereitung nach dem Durchflussprinzip. Force PT C Druck- und Thermostatregler

    Energy Technology Data Exchange (ETDEWEB)

    Jensen, M. [Redan A/S, Risskov (Denmark)

    2003-08-01

    Water heating is getting more important as the heat demand of buildings decreases while customers demand higher comfort. The heating method employed influences the cooling of district heating water, energy consumption and the energy efficiency of the district heating system in general, especially in district heating systems with low temperature and pressure ratios. [German] Aufgrund des immer geringer werdenden Heizwaermebedarfs von Gebaeuden und der gestiegenen Komfortanprueche der Kunden gewinnt die Warmwasserbereitung immer mehr an Bedeutung. Das eingesetzte Verfahren fuer die Erzeugung von Warmwasser hat dabei grossen Einfluss auf die Abkuehlung des Fernwaermewassers, den Energieverbrauch und die Energieeffizienz im gesamten Fernwaermesystem. Dies gilt sowohl fuer Nahwaermesystems mit geringeren Temperatur- und Druckverhaeltnissen. (orig.)

  2. Silicon substrates for thin-film solar arrays manufactured by means of the SSP method. Final report on the research project. Silicium-Substrate fuer Duennschicht-Solarzellen nach dem SSP-Verfahren. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Haas, F.; Osswald, D.; Zimmermann, W.; Faller, F.; Bau, S.

    1998-10-01

    The first year of the present project saw the design of a plant and construction office for the manufacture of silicon substrates for thin-film solar arrays by means of the SSP (Silicon Sheets from Powder) method. The plant was designed with a mind to flexibility and user friendliness so as to facilitate later optimisation of the ribbon manufacturing process as required by future demands. For the most part the plant was built by a local fine mechanics company. Some components such as the entire electricity supply system for the lamp heater had to be purchased separately. After the first project year the plant was ready for operation, though some components had to be reworked after the first ribbon manufacturing runs. The remaining year of the projected run time was dedicated to the optimisation of the ribbon manufacturing process. Not all of the aims set out at the beginning were actually achieved, notably due to the unavailability of a powder of optimum grain size (100 - 300 [mu]m). The manufactured Si ribbons have the specified width (210 mm)and length (1.5 m), but they are too thick (800 [mu]m). It proved possible to increase process speed to 100 mm/min, resulting in an output of 1.2 m-2/h. Given an optimum rate of utilisation, i.e. four-shift operation, the plant can produce 700,000 modules of 100 x 100 mm-2, the equivalent of 1 MW, per year.

  3. The final disposal of radioactive wastes from Germany in foreign countries; Die Endlagerung radioaktiver Abfaelle aus Deutschland im Ausland. Eine Bewertung der Rechtslage nach dem Regierungsentwurf der 14. Novelle des Atomgesetzes

    Energy Technology Data Exchange (ETDEWEB)

    Borck, Philip

    2014-07-01

    The final disposal of radioactive wastes causes not only difficult questions with respect to the atomic law but is also related to constitutional questions of the polluter-pays-principle and the responsibility for the life conditions of future generations. The thesis discusses questions of the German and European atomic law and basic questions of the legal responsibility for radioactive wastes.

  4. Amendment of the Atomic Law. Need of aopproval according to the Constitutional Law and EU competencies for the regulation of the nuclear safety; Novellierung des Atomgesetzes. Zustimmungsbeduerftigkeit nach dem GG und EU-Kompetenzen zur Regelung der nuklearen Sicherheit

    Energy Technology Data Exchange (ETDEWEB)

    Frenz, Walter; Ehlenz, Christian [RWTH Aachen (Germany)

    2010-12-15

    The in the context of the European Atomic Energy Community (Euratom) issued for the dumping of waste disposals and for the safe disposal of radioactive wastes planned secondary legislation concerns to the nuclear safety. The scope of competence is reduced in this range. For the amendment of the atomic law, also covering the extension of power plant operation, essentially substantial points of contact exist, and an independent field of problem develops. This happens in addition to anyway disputed demand of agreement of the Federal Council for the change of the Atomic Energy Act according to Sect. 87c Constitutional Law also having a European legal determinant. The last question did not dominate by the fact that the legal committee of the Federal Council in its meeting at 10th November, 2010, voted by majority that the atomic novella for the extension of power plant operation is obligated for agreement. However, this vote is not binding for the plenum.

  5. Looking for a new HIT. Sanyo's patents for the HIT technology has expired, and competitors hope for new profits; Suche nach dem neuen HIT. Sanyos Patente fuer die HIT-Technologie sind ausgelaufen, die Konkurrenz frohlockt

    Energy Technology Data Exchange (ETDEWEB)

    Chunduri, Shravan K.; Haase, Christian

    2010-11-15

    With their hybrid cells, Sanyo Electric Co. Ltd. had covered a solar niche market. The HIT technology offers high efficiency at low production cost. Now, however, the most relevant patents of the Japanese producer have expired, and competitors working on similar concepts are out for their chance. For example, Swiss manufacturer Roth and Rau have been taking orders for turnkey hybrid cell production from January 2011. (orig.)

  6. Use of residual fuels and biowaste of low calorific value for syngas production by the Noell conversion process; Der Einsatz niederkaloriger Energietraeger aus Reststoffen und Bioabfaellen zur Synthesegaserzeugung nach dem Noell-Konversionsverfahren

    Energy Technology Data Exchange (ETDEWEB)

    Schingnitz, M.; Goehler, P. [Noell-KRC Energie- und Umwelttechnik GmbH, Freiberg (Germany)

    1996-12-31

    By gasification with oxygen, municipal waste can be converted into a pure, burnable gas. The gas can be used like natural gas, e.g. in boilers and industrial furnaces, gas engines and gas turbines for heat and electric power generation, but also in chemical synthesis processes, e.g. methanol synthesis. If the right gasification technology is selected, the mineral constitutents of the waste materials can be melted down at the same time, e.g. into a granulate with a glass-like structure that can be used as constructional material. (orig) [Deutsch] Durch Vergasung mit Sauerstoff lassen sich kommunale Abfaelle in ein brennbares Gas umwandeln. Dieses Gas kann mit einfachen und bewaehrten verfahren von Schadstoffen wie Schwefelverbindungen befreit werden. Es laesst sich wie sauberes Erdgas umweltfreundlich in Kesseln und Industrieoefen einsetzen, in Gasmotoren oder Gasturbinen zur Erzeugung von Elektroenergie und Heizwaerme nutzen, aber auch zu chemischen Synthesen, beispielsweise von Methanol, verwenden. Bei geeigneter Wahl der Vergasungstechnologie gelingt es ausserdem, die mineralischen Bestandteile der Abfallstoffe prozessintern aufzuschmelzen und in ein beispielsweise als Baustoff verwertbares Schmelzgranulat mit glasartiger Struktur zu ueberfuehren. (orig)

  7. Legal boundary conditions for direct marketing of 'green current' according to EEG 2012; Rechtliche Rahmenbedingungen fuer die Direktvermarktung von ''Gruenstrom'' nach dem EEG 2012

    Energy Technology Data Exchange (ETDEWEB)

    Breuer, Daniel [Landgericht Koeln (Germany); Osborne Clarke, Koeln (Germany). Bereich Energierecht

    2012-07-01

    The new direct marketing regime of the EEG 2012 provides incentives for operators of renewables-based systems to leave the fixed reimbursement scheme and integrate their systems in the markets, especially in the context of marketing of regulating power. However, it remains to be seen if this will reduce the cost of regulating energy supply, or at least keep it at the current level. In any case, plant operators should be careful in choosing their direct marketers and other partners and consultants. Simultaneous supply of regulating power is attractive especially for controllable and in some cases also for fluctuating renewable energy sources. This does comply with the priority principle and also with the prohibition of double marketing as is clearly stated in SEction 8 No. 3a.

  8. Review of: Meinders, Beckedorf and Weiss: Overview of the Appeal Proceedings according to the EPC - Überblick über das Beschwerdeverfahren nach dem EPÜ - Apercu sur la procédure de recours selon la CBE

    NARCIS (Netherlands)

    Mulder, C.A.M.

    2014-01-01

    The book Overview of the Appeal Proceedings according to the EPC gives a survey of the procedures before the Boards of Appeal of the European Patent Office (EPO). The text is trilingual. The book provides an easily readable review of appeal proceedings. This book is a helpful tool for European paten

  9. Looking back from the endpoint. Competition between renewables after the phase-out of nuclear and fossil energies; Vom Ende her gesehen. Der Wettbewerb der Erneuerbaren untereinander nach dem Ausstieg aus Kernkraft und fossilen Energien

    Energy Technology Data Exchange (ETDEWEB)

    Luhmann, Hans-Jochen [Wuppertal Institut fuer Klima, Umwelt, Energie GmbH, Wuppertal (Germany)

    2012-12-15

    A German electricity supply system fuelled entirely by the sun and wind appears somewhat as a vision of extremes. However, it is certainly one scenario for which the course has been set. One implication of this statement is that we are currently in what is referred to as a path-dependent development and are moreover witnessing a parting of the ways. This is going almost unnoticed in Germany. The present article therefore presents a thought experiment in which this tendency is interpreted as resulting from a parallelogram of forces, a model which also offers a view on the special energy summit of 2 November 2012. The author has taken the approach of representing the system change on a comparative, static basis. In doing so he has adopted the widely used method of looking back from a postulated endpoint. This is combined with an analysis of dynamically interacting driver elements. The endpoint, i.e. the time when the system has reached a steady state after its transformation, has been assumed to lie in the year 2050.

  10. Sm2+ sensitization of Nd3+ solid state lasers

    Science.gov (United States)

    Payne, Stephen A.; Chase, L. L.

    1986-08-01

    We have measured the Sm2→Nd3+ energy transfer efficiency in CaF2 and have found that the transfer ocurs through the dipole-dipole interaction. Although efficiencies of 0.9 can be achieved with reasonable levels of Nd3+ doping, the Sm2+ luminescence begins to quench at T≳220K.

  11. The crystallization of Al-Sm amorphous alloys

    Energy Technology Data Exchange (ETDEWEB)

    Rizzi, P. [Turin Univ. (Italy). Dipt. di Chimica Inorganica; Baricco, M. [Turin Univ. (Italy). Dipt. di Chimica Inorganica; Battezzati, L. [Turin Univ. (Italy). Dipt. di Chimica Inorganica; Schumacher, P. [Cambridge Univ. (United Kingdom). Dept. of Metallurgy and Materials Science; Greer, A.L. [Cambridge Univ. (United Kingdom). Dept. of Metallurgy and Materials Science

    1995-12-31

    Amorphous alloys with composition Al{sub 100-x}Sm{sub x} (8 {<=} x {<=} 14) have been prepared by melt spinning in controlled atmosphere. The quenching conditions significantly influence the microstructure of as-quenched samples and their crystallization mechanisms. The crystallization was followed by means of DSC, XRD, TEM and SEM. Different mechanisms are observed as a function of composition. For low Sm content (Al{sub 92}Sm{sub 8}), a primary crystallization occurs at about 180 C, with the formation of Al nanocrystals with a grain size of about 15 nm. A polymorphic crystallization is found in Al{sub 90}Sm{sub 10}, with the formation of a metastable intermetallic phase at about 220 C. For higher Sm content (Al{sub 88}Sm{sub 12} and Al{sub 86}Sm{sub 14}), a eutectic crystallization at about 230 C gives a mixture of stable (Al and Al{sub 11}Sm{sub 3}) and metastable phases. (orig.)

  12. Open-Source Digital Elevation Model (DEMs) Evaluation with GPS and LiDAR Data

    Science.gov (United States)

    Khalid, N. F.; Din, A. H. M.; Omar, K. M.; Khanan, M. F. A.; Omar, A. H.; Hamid, A. I. A.; Pa'suya, M. F.

    2016-09-01

    Advanced Spaceborne Thermal Emission and Reflection Radiometer-Global Digital Elevation Model (ASTER GDEM), Shuttle Radar Topography Mission (SRTM), and Global Multi-resolution Terrain Elevation Data 2010 (GMTED2010) are freely available Digital Elevation Model (DEM) datasets for environmental modeling and studies. The quality of spatial resolution and vertical accuracy of the DEM data source has a great influence particularly on the accuracy specifically for inundation mapping. Most of the coastal inundation risk studies used the publicly available DEM to estimated the coastal inundation and associated damaged especially to human population based on the increment of sea level. In this study, the comparison between ground truth data from Global Positioning System (GPS) observation and DEM is done to evaluate the accuracy of each DEM. The vertical accuracy of SRTM shows better result against ASTER and GMTED10 with an RMSE of 6.054 m. On top of the accuracy, the correlation of DEM is identified with the high determination of coefficient of 0.912 for SRTM. For coastal zone area, DEMs based on airborne light detection and ranging (LiDAR) dataset was used as ground truth data relating to terrain height. In this case, the LiDAR DEM is compared against the new SRTM DEM after applying the scale factor. From the findings, the accuracy of the new DEM model from SRTM can be improved by applying scale factor. The result clearly shows that the value of RMSE exhibit slightly different when it reached 0.503 m. Hence, this new model is the most suitable and meets the accuracy requirement for coastal inundation risk assessment using open source data. The suitability of these datasets for further analysis on coastal management studies is vital to assess the potentially vulnerable areas caused by coastal inundation.

  13. The impact of resolution on the accuracy of hydrologic data derived from DEMs

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Hydrologic data derived from digital elevation models (DEM) has been regarded as an effective method in the spatial analysis of geographical information systems (GIS). However, both DEM resolution and terrain complexity has impacts on the accuracy of hydrologic derivatives. In this study, a multi-resolution and multi-relief comparative approach was used as a major methodology to investigate the accuracy of hydrologic data derived from DEMs. The experiment reveals that DEM terrain representation error affects the accuracy of DEM hydrological derivatives (drainage networks and watershed etc.). Coarser DEM resolutions can usually cause worse results. However, uncertain result commonly exists in this calculation. The derivative errors can be found closely related with DEM vertical resolution and terrain roughness. DEM vertical resolution can be found closely related with the accuracy of DEM hydrological derivatives, especially in the smooth plain area. If the mean slope is less than 4 degrees, the derived hydrologic data are usually unreliable. This result may be helpful in estimating the accuracy of the hydrologic derivatives and determining the DEM resolution that is appropriate to the accuracy requirement of a particular user. By applying a threshold value to subset the cells of a higher accumulation flow, a stream network of a specific network density can be extracted. Some very important geomorphologic characteristics, e.g., shallow and deep gullies, can be separately extracted by means of adjusting the threshold value. However, such a flow accumulation based processing method can not correctly derive those streams that pass through the working area because it is hard to accumulate enough flow direction values to express the stream channels at the stream's entrance area. Consequently, errors will definitely occur at the stream's entrance area. In addition, erroneous derivatives can also be found in deriving some particular rivers, e.g., perched (hanging up) rivers

  14. Effect of Uncertainty of Grid DEM on TOPMODEL: Evaluation and Analysis

    Institute of Scientific and Technical Information of China (English)

    WANG Peifa; DU Jinkang; FENG Xuezhi; KANG Guoding

    2006-01-01

    TOPMODEL, a semi-distributed hydrological model, has been widely used. In the process of simulation of the model, Digital Elevation Model (DEM) is used to provide the input data, such as topographic index and distance to the drainage outlet; thus DEM plays an important role in TOPMODEL. This study aims at examining the impacts of DEM uncertainty on the simulation results of TOPMODEL. In this paper, the effects were evaluated mainly from quantitative and qualitative aspects. Firstly, DEM uncertainty was simulated by using the Monte Carlo method, and for every DEM realization, the topographic index and distance to the drainage outlet were extracted. Secondly, the obtained topographic index and the distance to the drainage outlet were input to the TOPMODEL to simulate seven rainstorm-flood events, and four evaluation indices, such as Nash and Sutcliffe efficiency criterion (EFF), sum of squared residuals over all time steps (SSE), sum of squared log residuals over all time steps (SLE) and sum of absolute errors over all time steps (SAE) were recorded. Thirdly, these four evaluation indices were analyzed in statistical manner (minimum, maximum, range, standard deviation and mean value), and effect of DEM uncertainty on TOPMODEL was quantitatively analyzed. Finally, the simulated hydrographs from TOPMODEL using the original DEM and realizations of DEM were qualitatively evaluated under each flood cases. Results show that the effect of DEM uncertainty on TOPMODEL is inconsiderable and could be ignored in the model's application. This can be explained by: 1)TOPMODEL is not sensitive to the distribution of topographic index and distance to the drainage outlet; 2) the distribution of topographic index and distance to the drainage outlet are slightly affected by DEM uncertainty.

  15. GIFTS SM EDU Radiometric and Spectral Calibrations

    Science.gov (United States)

    Tian, J.; Reisse, R. a.; Johnson, D. G.; Gazarik, J. J.

    2007-01-01

    The Geosynchronous Imaging Fourier Transform Spectrometer (GIFTS) Sensor Module (SM) Engineering Demonstration Unit (EDU) is a high resolution spectral imager designed to measure infrared (IR) radiance using a Fourier transform spectrometer (FTS). The GIFTS instrument gathers measurements across the long-wave IR (LWIR), short/mid-wave IR (SMWIR), and visible spectral bands. The raw interferogram measurements are radiometrically and spectrally calibrated to produce radiance spectra, which are further processed to obtain atmospheric profiles via retrieval algorithms. This paper describes the processing algorithms involved in the calibration. The calibration procedures can be subdivided into three categories: the pre-calibration stage, the calibration stage, and finally, the post-calibration stage. Detailed derivations for each stage are presented in this paper.

  16. Cross sections of deuteron induced reactions on $^{nat}$Sm for production of the therapeutic radionuclide $^{145}$Sm and $^{153}$Sm

    CERN Document Server

    Tárkányi, F; Takács, S; Ditrói, F; Csikai, J; Ignatyuk, A V

    2014-01-01

    At present, targeted radiotherapy (TR) is acknowledged to have great potential in oncology. A large list of interesting radionuclides is identified, including several radioisotopes of lanthanides, amongst them $^{145}$Sm and $^{153}$Sm. In this work the possibility of their production at a cyclotron was investigated using a deuteron beam and a samarium target. The excitation functions of the $^{nat}$Sm(d,x)$^{145153}$Sm reactions were determined for deuteron energies up to 50 MeV using the stacked-foil technique and high-resolution $\\gamma$-ray spectrometry. The measured cross sections and the contributing reactions were analyzed by comparison with results of the ALICE, EMPIRE and TALYS nuclear reaction codes. A short overview and comparison of possible production routes is given.

  17. Synthesis and sintering of samarium rich SmSxand its electrical property

    Institute of Scientific and Technical Information of China (English)

    Liang Li; Shinji Hirai; Yohei Tasaki

    2016-01-01

    Non-stoichiometric samarium monosulfide (SmSx, 0.55≤x≤1.2) was synthesized from Sm2S3and SmH3at 1273 K for 3 h under vacuum. The influence of reaction ratio of Sm2S3to SmH3on the fabrication of SmSxwas investigated. The fabrication of SmS required the molarratio of Sm2S3to SmH3above 1. Lattice parameter of synthetic SmSxincreasedfirstly and then decreasedto satu-rate following with the addition of SmH3content. SmSxcompact was sintered at 1373 K by spark plasma sintering. Density of syn-theticSmSxwas about 99% of theory density. Seebeck coefficient of n-type semiconductor SmSxdecreasedas temperature rose. The absolute valuewas distributed between 170–280 μV/K. The electrical resistivity of SmSx(0.86≤x≤1.07) decreasedwith tem-perature increasing and showedsimilar temperature dependence. The surplus Sm which randomly distributed in the SmSx (0.55≤x≤0.75) matrix led to a remarked reduction of electricalresistivity. The optimized power factor for SmS0.6and SmS0.75 couldreach 1500 μW/(K2·m)at 600 K.

  18. GIFTS SM EDU Level 1B algorithms

    Science.gov (United States)

    Tian, Jialin; Gazarik, Michael J.; Reisse, Robert A.; Johnson, David G.

    2007-10-01

    The Geosynchronous Imaging Fourier Transform Spectrometer (GIFTS) Sensor Module (SM) Engineering Demonstration Unit (EDU) is a high resolution spectral imager designed to measure infrared (IR) radiances using a Fourier transform spectrometer (FTS). The GIFTS instrument employs three focal plane arrays (FPAs), which gather measurements across the long-wave IR (LWIR), short/mid-wave IR (SMWIR), and visible spectral bands. The raw interferogram measurements are radiometrically and spectrally calibrated to produce radiance spectra, which are further processed to obtain atmospheric profiles via retrieval algorithms. This paper describes the GIFTS SM EDU Level 1B algorithms involved in the calibration. The GIFTS Level 1B calibration procedures can be subdivided into four blocks. In the first block, the measured raw interferograms are first corrected for the detector nonlinearity distortion, followed by the complex filtering and decimation procedure. In the second block, a phase correction algorithm is applied to the filtered and decimated complex interferograms. The resulting imaginary part of the spectrum contains only the noise component of the uncorrected spectrum. Additional random noise reduction can be accomplished by applying a spectral smoothing routine to the phase-corrected spectrum. The phase correction and spectral smoothing operations are performed on a set of interferogram scans for both ambient and hot blackbody references. To continue with the calibration, we compute the spectral responsivity based on the previous results, from which, the calibrated ambient blackbody (ABB), hot blackbody (HBB), and scene spectra can be obtained. We now can estimate the noise equivalent spectral radiance (NESR) from the calibrated ABB and HBB spectra. The correction schemes that compensate for the fore-optics offsets and off-axis effects are also implemented. In the third block, we developed an efficient method of generating pixel performance assessments. In addition, a

  19. GIFTS SM EDU Level 1B Algorithms

    Science.gov (United States)

    Tian, Jialin; Gazarik, Michael J.; Reisse, Robert A.; Johnson, David G.

    2007-01-01

    The Geosynchronous Imaging Fourier Transform Spectrometer (GIFTS) SensorModule (SM) Engineering Demonstration Unit (EDU) is a high resolution spectral imager designed to measure infrared (IR) radiances using a Fourier transform spectrometer (FTS). The GIFTS instrument employs three focal plane arrays (FPAs), which gather measurements across the long-wave IR (LWIR), short/mid-wave IR (SMWIR), and visible spectral bands. The raw interferogram measurements are radiometrically and spectrally calibrated to produce radiance spectra, which are further processed to obtain atmospheric profiles via retrieval algorithms. This paper describes the GIFTS SM EDU Level 1B algorithms involved in the calibration. The GIFTS Level 1B calibration procedures can be subdivided into four blocks. In the first block, the measured raw interferograms are first corrected for the detector nonlinearity distortion, followed by the complex filtering and decimation procedure. In the second block, a phase correction algorithm is applied to the filtered and decimated complex interferograms. The resulting imaginary part of the spectrum contains only the noise component of the uncorrected spectrum. Additional random noise reduction can be accomplished by applying a spectral smoothing routine to the phase-corrected spectrum. The phase correction and spectral smoothing operations are performed on a set of interferogram scans for both ambient and hot blackbody references. To continue with the calibration, we compute the spectral responsivity based on the previous results, from which, the calibrated ambient blackbody (ABB), hot blackbody (HBB), and scene spectra can be obtained. We now can estimate the noise equivalent spectral radiance (NESR) from the calibrated ABB and HBB spectra. The correction schemes that compensate for the fore-optics offsets and off-axis effects are also implemented. In the third block, we developed an efficient method of generating pixel performance assessments. In addition, a

  20. Esophageal scintigraphy of Zenker`s diverticula before and after diverticulotomy; Oesophagusszintigraphie von Zenkerschen Divertikeln vor und nach Divertikulotomie

    Energy Technology Data Exchange (ETDEWEB)

    Frahm, C.; Baehre, M.; Eckerle, S.; Richter, E. [Medizinische Univ. Luebeck (Germany). Klinik fuer Strahlentherapie und Nuklearmedizin; Ahrens, K.H.; Sommer, K. [Medizinische Univ. Luebeck (Germany). Klinik fuer Hals-, Nasen- und Ohrenheilkunde; Frahm, C. [Medizinische Univ. Luebeck (Germany). Inst. fuer Radiologie

    1998-03-01

    Sequential and static esophageal scintigraphies were performed in 17 patients with Zenker`s diverticulum before and after laser surgical diverticulotomy. We used a gamma camera system in 45 LAO-position after application of 15 ml of tea which was marked with {sup 99m}Tc-DTPA. Filling and evacuation of the diverticulum were expressed in proportion to the administered activity. Relative volumes of the diverticula were obtained from cineradiography by using the height of the neighbouring cervical vertebra, and the clinical symptoms were divided into 4 groups. Zenker`s diverticula could be verified visually and quantitatively by scintigraphy. The precise temporal course of the reduction of activity in the diverticulum was exactly determined. The scintigraphic retentions correlated with the X-ray volumes with a coefficient ranging from 0,55 to 0,85. Clinical symptoms also were not very closely related to scintigraphic and X-ray findings, respectively. The esophageal scintigraphy allows quantification of the filling and evacuation of Zenker`s diverticula, thus it is suitable for objectivization of the functional relevance of the diverticula. (orig./MG) [Deutsch] Bei 17 Patienten mit Zenkerschem Divertikel wurden vor und nach laserchirurgischer Divertikulotomie Oesophagussequenzszintigraphien und statische Oesophagusszintigraphien durchgefuehrt. Die Untersuchungen erfolgten an einer Grossfeld-Gammakamera in 45 LAO-Position nach Applikation von 15 ml Tee, der mit {sup 99m}Tc-DTPA markiert war. Divertikelfuellung und -entleerung wurden im Verhaeltnis zur applizierten Aktivitaet ausgedrueckt. Die relativen Divertikelvolumina wurden aus der Roentgenkinematographie anhand der Hoehe des benachbarten Halswirbelkoerpers bestimmt, die klinischen Beschwerden nach 4 Schweregraden beurteilt. Die Zenkerschen Divertikel liessen sich szintigraphisch visuell und quantitativ nachweisen. Der genaue zeitabhaengige Verlauf der Aktivitaetsabnahme im Divertikel wurde jeweils exakt bestimmt

  1. Micromagnetic Simulation of Magnetization Reversal in SmCo5/Sm2Co17 Magnets

    Institute of Scientific and Technical Information of China (English)

    荣传兵; 张宏伟; 杜晓波; 张健; 张绍英; 沈保根

    2004-01-01

    A three-dimensional finite element micromagnetic algorithm was developed to study the magnetization reversal of the SmCo5/Sm2Co17 based magnets. The influences of the microstructure and magnetic parameters on the coercivity were studied based on the model consisting of 64 irregular cells according to the experimental microstructure. Numerical results show that the coercivity increases with increasing the 2∶17-type cell size. Large cell boundary thickness leads to small coercivity. The drop of anisotropy constant of 1∶5 phase leads to the coercivity reducing, while the effect of exchange constant of 1∶5 phase on coercivity is contrary to that of exchange constant. The calculated field dependence of coercivity can be predicted by an inhomogeneous domain-wall pinning model. The microstructure parameter was analyzed by comparing the calculated coercivity.

  2. Warum sind Pflegefachmänner und Elektrikerinnen nach wie vor selten? Geschlechtersegregation in Ausbildungs- und Berufsverläufen junger Erwachsener in der Schweiz

    OpenAIRE

    Schwiter, Karin; Hupka-Brunner, Sandra; Wehner, Nina; Huber, Evéline; Kanji, Shireen; Maihofer, Andrea; Bergman, Manfred Max

    2014-01-01

    Unser Artikel analysiert Persistenz und Wandel von Geschlechterungleichheiten am Beispiel der Geschlechtersegregation in den Ausbildungs- und Berufsverläufen von jungen Erwachsenen in der Schweiz. Wir fragen nach den Mechanismen, welche die Geschlechtstypik von Ausbildungswegen beeinflussen. Als zentrale Erkenntnisse stellen wir fest, dass junge Erwachsene in geschlechtsuntypischen Berufen überdurchschnittliche schulische und familiäre Voraussetzungen mitbringen, sich untypische Ausbildungswe...

  3. Detection of antifungal properties in Lactobacillus paracasei subsp. paracasei SM20, SM29, and SM63 and molecular typing of the strains.

    Science.gov (United States)

    Schwenninger, Susanne Miescher; von Ah, Ueli; Niederer, Brigitte; Teuber, Michael; Meile, Leo

    2005-01-01

    Lactobacilli isolated from different food and feed samples such as raw milk, cheese, yoghurt, olives, sour dough, as well as corn and grass silage, were screened for their antifungal activities. Out of 1,424 isolates tested, 82 were shown to be inhibitory to different yeasts (Candida spp. and Zygosaccharomyces bailii) and a Penicillium sp., which were previously isolated from spoiled yoghurt and fruits. Carbohydrate fermentation patterns suggested that a substantial portion, 25%, belonged to the Lactobacillus casei group, including L. casei, L. paracasei, and L. rhamnosus. The isolates SM20 (DSM14514), SM29 (DSM14515), and SM63 (DSM14516) were classified by PCR using species-specific primers to target the corresponding type strains (L. casei, L. paracasei, and L. rhamnosus) as controls. Further molecular typing methods such as randomly amplified polymorphic DNA, pulsed-field gel electrophoresis, and sequencing analysis of the 16S rRNA gene allowed classifying strains SM20, SM29, and SM63 as L. paracasei subsp. paracasei in accordance with the new reclassification of the L. casei group proposed by Collins et al.

  4. The Growing Influence of Al-Qaeda on the African Continent Der wachsende Einfluss von Al-Qaida auf dem afrikanischen Kontinent

    Directory of Open Access Journals (Sweden)

    Hans Krech

    2011-01-01

    Full Text Available Al-Qaeda’s influence in Africa is growing. From 2009 to 2011, activity by Al-Qaeda was noted in 19 African nations and regions. Four regional Al-Qaeda organizations operate on the continent, which in turn often have several sub-organizations: the Egyptian Islamic Jihad, the Libyan Islamic Fighting Group, Al-Qaeda in the Islamic Maghreb (with its suborganizations Al-Qaeda in Mali, Al-Qaeda in Mauritania, Al-Qaeda in Morocco and Al-Qaeda in Sudan and Al-Shabab in Somalia. Since Osama bin Laden’s death on 2 May 2011, the influence of African leaders within Al-Qaeda has increased significantly. All three presumed members of the strategic command level originate from Africa. The revolutions of the Arab Spring have not harmed Al-Qaeda. This contribution highlights the potential for further expansion by Al-Qaeda on the African continent, and how this needs to be responded to.Der Einfluss von Al-Qaida in Afrika wächst. In den Jahren 2009 bis 2011 wurden Al-Qaida-Aktivitäten in 19 afrikanischen Staaten und Gebieten registriert. In Afrika gibt es vier Al-Qaida-Regionalorganisationen, die wiederum oft mehrere Unterorganisationen haben: Ägyptischer Islamischer Jihad (EIJ, Libysch-Islamische Kampfgruppe (LIFG, Al-Qaida im Islamischen Maghreb (AQIM, mit den Unterorganisationen Al-Qaida im Sudan, Al-Qaida in Mali, Al-Qaida in Marokko, Al-Qaida in Mauretanien sowie die Al-Shabab in Somalia. Nach dem Tod von Osama bin Laden am 2. Mai 2011 ist der Einfluss von afrikanischen Führern in der Al-Qaida deutlich angewachsen. Alle drei mutmaßlichen Mitglieder der strategischen Führungsebene kommen aus Afrika. Die Revolutionen des “Arabischen Frühlings” haben Al-Qaida nicht geschadet. Diese Entwicklungen könnten zu einer weiteren Ausbreitung von Al-Qaida auf dem Afrikanischen Kontinent beitragen.

  5. The Apeldoorn VerTech wet oxidation plant - experience gathered during permanent operation; VerTech-Nassoxidationsanlage Apeldoorn - Erfahrungen aus dem Dauerbetieb

    Energy Technology Data Exchange (ETDEWEB)

    Daun, M.

    1996-02-01

    The wet oxidation process has been known since the beginning of this century: its principle is the oxidization of organic and, in part, inorganic substances at temperatures of approximately 150 to 330 centigrades and pressures ranging from 10 to 220 bar, involving the consumption of oxygen. Some wet oxidation processes use the supra-critical range up to about 600 centigrades and 250 bar. The reaction products obtained are carbon dioxide and water. Depending on the initial product and reaction conditions, relatively low concentrations of low-molecular organic acids and, in some, cases, ammonium ions are retained in the watery phase, which are degraded in an integrated biological process step.- Wet oxidation in a deep shaft takes place in the sub-critical range (at pressures less than or equal to 100 bar and at a temperature of 280 centigrades). It is integrated into the multi-stage VerTech process as the most important process step. The first industrial-scale plant using this innovative reactor concept is in operation at Apeldoorn, Netherlands. As the performance of the Apeldoorn plant demonstrates, this technology is excellently suited to ensure compliance with all German statutory regulations and guidelines, especially the technical code on municipal waste and the technical code on clean air. (orig./ABI) [Deutsch] Die Nassoxidation ist ein seit Anfang dieses Jahrhunderts bekanntes Behandlungsverfahren, bei dem organische Stoffe und teilweise auch anorganische Stoffe unter Verbrauch von Sauerstoff bei Temperaturen von ca. 150 bis 330 C und Druecken von ca. 10 bis 220 bar oxidiert werden. Einige Verfahren arbeiten auch im ueberkritischen Bereich bis ca. 600 C und 250 bar. Bei dem Prozess entstehen als Reaktionsprodukte Kohlendioxid und Wasser. In der waessrigen Phase verbleiben je nach Ausgangsprodukt und Reaktionsbedingungen relativ geringe Konzentrationen an niedermolekularen organischen Saeuren und ggf. Ammoniumionen, die in einer biologischen Stufe prozessintern

  6. Shorter 146Sm half-life and revised 146Sm-142Nd ages of planetary mantle differentiation

    CERN Document Server

    Kinoshita, N; Kashiv, Y; Collon, P; Deibel, C M; DiGiovine, B; Greene, J P; Henderson, D J; Jiang, C L; Marley, S T; Nakanishi, T; Pardo, R C; Rehm, K E; Robertson, D; Scott, R; Schmitt, C; Tang, X D; Vondrasek, R; Yokoyama, A

    2011-01-01

    The extinct short-lived nuclide 146Sm, synthesized in stellar events by the p-process, serves as both an astrophysical and geochemical chronometer through measurements of isotopic anomalies of its alpha-decay daughter 142Nd. Evidence of live 146Sm, quantitatively established for the early Solar System, constrains the time between p-process nucleosynthesis and condensation of the first solid materials. Samarium-146 is used also to date silicate mantle differentiation events in a number of planetary bodies, including Earth. We performed a new measurement of the 146Sm half-life and our result, t = 68\\pm7 (1sigma) million year (Ma), is significantly shorter than the value currently used for 146Sm-142Nd chronology (103\\pm5 Ma). We show here that the shorter 146Sm half-life value implies a higher initial Solar System ratio, (146Sm/144Sm)_0 = 0.0094\\pm0.0005 (2sigma), than the recently derived value 0.0085\\pm0.0007, or that used in most studies 0.008\\pm0.001. Planetary differentiation processes dated by 146Sm-142Nd ...

  7. Impacts of DEM uncertainties on critical source areas identification for non-point source pollution control based on SWAT model

    Science.gov (United States)

    Xu, Fei; Dong, Guangxia; Wang, Qingrui; Liu, Lumeng; Yu, Wenwen; Men, Cong; Liu, Ruimin

    2016-09-01

    The impacts of different digital elevation model (DEM) resolutions, sources and resampling techniques on nutrient simulations using the Soil and Water Assessment Tool (SWAT) model have not been well studied. The objective of this study was to evaluate the sensitivities of DEM resolutions (from 30 m to 1000 m), sources (ASTER GDEM2, SRTM and Topo-DEM) and resampling techniques (nearest neighbor, bilinear interpolation, cubic convolution and majority) to identification of non-point source (NPS) critical source area (CSA) based on nutrient loads using the SWAT model. The Xiangxi River, one of the main tributaries of Three Gorges Reservoir in China, was selected as the study area. The following findings were obtained: (1) Elevation and slope extracted from the DEMs were more sensitive to DEM resolution changes. Compared with the results of the 30 m DEM, 1000 m DEM underestimated the elevation and slope by 104 m and 41.57°, respectively; (2) The numbers of subwatersheds and hydrologic response units (HRUs) were considerably influenced by DEM resolutions, but the total nitrogen (TN) and total phosphorus (TP) loads of each subwatershed showed higher correlations with different DEM sources; (3) DEM resolutions and sources had larger effects on CSAs identifications, while TN and TP CSAs showed different response to DEM uncertainties. TN CSAs were more sensitive to resolution changes, exhibiting six distribution patterns at all DEM resolutions. TP CSAs were sensitive to source and resampling technique changes, exhibiting three distribution patterns for DEM sources and two distribution patterns for DEM resampling techniques. DEM resolutions and sources are the two most sensitive SWAT model DEM parameters that must be considered when nutrient CSAs are identified.

  8. Effect of DEM Source and Resolution on Extracting River Network and Watershed within Multi-Lake Area in Tibet

    Science.gov (United States)

    Li, Yang; Li, Gang; Lin, Hui

    2014-11-01

    DEM defines drainage structures and basin through conducting overland flow simulation. Two matured DEM Sources are SRTM DEM (Shuttle Radar Topographic Mission) and ASTER GDEM (Advanced Space borne Thermal Emission and Reflection Radiometer Global Digital Elevation Model); The accuracy of hydrological characters that derived from DEM decreased from high resolution to coarse resolution and appeared to be different in different data source (Vaze,Teng, & Spencer, 2010).

  9. Aktuelle Technik der Bruststraffung beim Mann nach Gewichtsverlust [Modern technique in male breast contouring after weight loss

    Directory of Open Access Journals (Sweden)

    Stoff, Alexander

    2013-08-01

    Full Text Available [english] The morbid adiposity and its medical consequences demonstrates a growing problem of our current prosperous society. Due to a significant improvement of bariatric techniques and a reduplication of adipose patients during the 20 century, the number of patients, who present to plastic surgeons with a new degree of suffering, has been growing steadily. Initially, the female patients were in the majority, which has been more balanced nowadays.The male breast is a body region that primarily symbolizes masculinity and strenght. In male patients after massive weight loss, this body region remains as an extremly deflated breast envelope without any sign of possible retraction. The plastic surgeon may choose from different single or combinated ltechniques, which are indicated depending on the local and adjacent tissue characteristics.We are presenting our modified technique of male breast reshaping, referring to the technique of Aly, except for a NAC transposition on a central pedicle. The central pedicle is hereby preserved from resection after tremendous liposuction. This central pedicle technique allows a safe and uncomplicated NAC transposition with significant advantages compared to free NAC-Transposition techniques in terms of aesthetical and functional outcome. [german] Die morbide Adipositas mit ihren Langzeitfolgen ist ein zunehmendes Problem unserer heutigen Wohlstandsgesellschaft. Mit einer Verdoppelung der betroffenen Patienten im Laufe des 20. Jahrhunderts ist gleichzeitig durch rasante Verbesserung der bariatrischen Eingriffe auch die Zahl der Patienten signifikant und stetig gestiegen, die sich nach massiver Gewichtsreduktion nun mit neuem Leidensdruck beim Plastischen Chirurgen vorstellen. Hierbei ist die anfängliche Überzahl der weiblichen Patienten in ein ausgewogenes Verhältnis der betroffenen Geschlechter übergegangen. Die männliche Brust, eine Körperregion, die in erster Linie Männlichkeit und Stärke symbolisiert und

  10. Postoperative radiotherapy for prevention of heterotopic ossification following total hip arthroplasty; Postoperative Strahlentherapie zur Praevention heterotoper Ossifikationen nach endoprothetischem Hueftgelenkersatz

    Energy Technology Data Exchange (ETDEWEB)

    Heyd, R. [Abt. fuer Strahlentherapie und Onkologie, Zentrum Radiologie, Klinikum J.-W.-Goethe-Universitaet, Frankfurt am Main (Germany); Strassmann, G. [Abt. fuer Strahlentherapie und Onkologie, Zentrum Radiologie, Klinikum J.-W.-Goethe-Universitaet, Frankfurt am Main (Germany); Kirchner, J. [Abt. fuer Roentgendiagnostik, Zentrum Radiologie, Klinikum J.-W.-Goethe-Universitaet, Frankfurt am Main (Germany); Schopohl, B. [Abt. fuer Strahlentherapie und Onkologie, Zentrum Radiologie, Klinikum J.-W.-Goethe-Universitaet, Frankfurt am Main (Germany); Boettcher, H.D. [Abt. fuer Strahlentherapie und Onkologie, Zentrum Radiologie, Klinikum J.-W.-Goethe-Universitaet, Frankfurt am Main (Germany)

    1996-10-01

    Following total hip arthroplasty high-grade heterotopic ossification occurs with a range of 0.5 to 27%. Local postoperative hip irradiation using different dosage and fractionation schedules reduces the incidence in high-risk cases on an average of 8%. The present retrospective study compares results after conventionally fractionated and high-dose radiotherapy. A total of 50 hips (46 patients) from 2 different risk groups had complete follow-up. In group I (40 hips [80.0%]) radiotherapy was indicated after surgical excision of pre-existing high-grade heterotopic ossification, in group II (10 hips [20.0%]) for several risk factors (contralateral heterotopic ossification [n=7], hypertrophic osteoarthritis [n=2], spondylosis hyperostotica [n=1]). In 28/50 cases (56.0%) conventionally fractionated irradiation with total doses ranging from 12.0 to 20.0 Gy was given, in 22/50 hips (44.0%) a high-dose irradiation consisting of 10.0 Gy given in 2 fractions on each of the first 2 postoperative days was applied. After a minimal observation period of 6 months (median: 22 months, range: 6 to 56 months) roentgenograms were analysed using a modified Brooker-score. At follow-up, 2 hips in group I had recurrence of high-grade heterotopic ossification with the stages IIIA and IVB. In 1 case radiotherapy was interrupted after 3x2.0 Gy due to sepsis (IIIA), in the other case ectopic bone recurred from bony islands which layed outside the radiation portal (IVB). In group II, 9 patients had stage 0 and 1 patient stage IA. Statistical analysis using the Wilcoxon-test showed a highly significant reduction of the amount of pre-existing heterotopic ossification (p<0.0001) for both fractionation schedules. The comparison of both fractionation groups with the Whitney-Mann-U-test (p=0.92) showed no statistical significant difference. (orig.) [Deutsch] Nach endoprothetischem Hueftgelenkersatz treten mit einer Spannbreite von 0,5 bis 27% hoehergradige heterotope Ossifikationen auf. Deren

  11. Das Problem der Mehrlinge nach ART – Entwicklung in Österreich und ein Vergleich mit den Anrainerstaaten

    Directory of Open Access Journals (Sweden)

    Tews G

    2013-01-01

    Full Text Available Die Inanspruchnahme der assistierten Reproduktion nimmt nach wie vor stark zu. Gleichzeitig steigt auch die Implantationsrate als Zeichen zunehmend besser werdender Technik, insbesondere im Labor. Durch die unzureichende Reduktion der transferierten Embryonen stiegen daher in ganz Europa sowohl die Gemini als auch manchmal die höhergradigen Mehrlinge rasch an. Teilweise betrug der Anteil der ARTKinder in neonatologischen Einheiten über längere Zeiträume 33 % und darüber und überforderte sowohl ärztliche als auch pflegerische Ressourcen. Interessanterweise betraf dieses Problem keineswegs nur Österreich, vielmehr erfolgten weltweit Diskussionen zwischen Neonatologen und Geburtshelfern einerseits und Reproduktionsmedizinern andererseits. Im internationalen Vergleich schafften es bisher lediglich Schweden und Belgien, durch die radikale Forcierung des Single-Embryo-Transfers die Mehrlingsquote bis unter 8 % zu drücken und damit die nachfolgende Problematik praktisch auszuschalten.

  12. How Strong and Weak Readers Perform on the Developmental Eye Movement Test (DEM): Norms for Latvian School-Aged Children

    Science.gov (United States)

    Serdjukova, Jelena; Ekimane, Lasma; Valeinis, Janis; Skilters, Jurgis; Krumina, Gunta

    2017-01-01

    The aim of our study was to determine DEM test performance norms for school-aged children in Latvia, assess how DEM test results correlate with children's reading rates, compare test performance between strong and weak readers. A modified DEM test and a newly developed reading test were administered to 1487 children during a screening survey. Our…

  13. Assessment of microseeds biodegradability of Sm and Sm:Ba splenic implants in rabbits

    Energy Technology Data Exchange (ETDEWEB)

    Siqueira, Savio Lana; Barroso, Thiago Vinicius Villar [Faculdade de Ciencias Medicas de Minas Gerais, Belo Horizonte, MG (Brazil). Dept. de Anatomia; Campos, Tarcisio P.R., E-mail: campos@nuclear.ufmg.b [Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG (Brazil). Programa de Ciencias e Tecnicas Nucleares

    2009-07-01

    The radioactive interstitial implants have applications in controlling neoplasm in several regions of the human body. Currently the permanent brachytherapy seeds implanted in the spleen and other organs are made of I-125 seeds. After the total emission of radiation, the metal encapsulated seed remains inert in the implanted area. Seeds of bioactive ceramics have been prepared with Sm-152 incorporation to be activated in Sm-153. This study aimed to develop surgical technique for implanting biodegradable micro-seeds in the spleen of the rabbit. Three micro-seeds were introduced by hypodermic needle in the spleen in eight rabbits by median laparotomy. Subsequently, there were clinical and functional reactions of the animal to the implanted foreign body. The other objective was to perform the animal monitoring by radiography, produced in time sequence, and pathological studies of a fragment of the spleens of rabbits. The results show the effectiveness of surgery, the identification of the implanted material by radiography in vivo, and the biocompatibility of micro-seeds most of Sm and Sm:Ba. These seeds of reduced volume, 0.3x 1.6 mm, could be monitored for radiological studies in 2 periods: early and later implant. On the later studies, radiography was taken at 60d post-implant. Biopsies were taken and radiographs of the samples were also performed for evidencing the degradation state of the seeds. The results of the two groups of four rabbits are presented. They show partial degradation of the seed verified by radiographic contrast which is related to the atomic number of the elements and mass density in the seed. The biopsy showed that the ceramic is clearly absorbed by the spleen tissue and form tissue-implant interface. The histological slides showed an inflammatory reaction with presence of fibrosis of the giant cell foreign body. In conclusion, the radiograph shows a suitable noninvasive technique for monitoring the degradation of micro-seed ceramics in vivo

  14. Incorporating the effect of DEM resolution and accuracy for improved flood inundation mapping

    Science.gov (United States)

    Saksena, Siddharth; Merwade, Venkatesh

    2015-11-01

    Topography plays a major role in determining the accuracy of flood inundation areas. However, many areas in the United States and around the world do not have access to high quality topographic data in the form of Digital Elevation Models (DEM). For such areas, an improved understanding of the effects of DEM properties such as horizontal resolution and vertical accuracy on flood inundation maps may eventually lead to improved flood inundation modeling and mapping. This study attempts to relate the errors arising from DEM properties such as spatial resolution and vertical accuracy to flood inundation maps, and then use this relationship to create improved flood inundation maps from coarser resolution DEMs with low accuracy. The results from the five stream reaches used in this study show that water surface elevations (WSE) along the stream and the flood inundation area have a linear relationship with both DEM resolution and accuracy. This linear relationship is then used to extrapolate the water surface elevations from coarser resolution DEMs to get water surface elevations corresponding to a finer resolution DEM. Application of this approach show that improved results can be obtained from flood modeling by using coarser and less accurate DEMs, including public domain datasets such as the National Elevation Dataset and Shuttle Radar Topography Mission (SRTM) DEMs. The improvement in the WSE and its application to obtain better flood inundation maps is dependent on the study reach characteristics such as land use, valley shape, reach length and width. Application of the approach presented in this study on more reaches may lead to development of guidelines for flood inundation mapping using coarser resolution and less accurate topographic datasets.

  15. Improving Cartosat-1 DEM accuracy using synthetic stereo pair and triplet

    Science.gov (United States)

    Giribabu, D.; Srinivasa Rao, S.; Krishna Murthy, Y. V. N.

    2013-03-01

    Cartosat-1 is the first Indian Remote Sensing Satellite capable of providing along-track stereo images. Cartosat-1 provides forward stereo images with look angles +26° and -5° with respect to nadir for generating Digital Elevation Models (DEMs), Orthoimages and value added products for various applications. A pitch bias of -21° to the satellite resulted in giving reverse tilt mode stereo pair with look angles of +5° and -26° with respect to nadir. This paper compares DEMs generated using forward, reverse and other possible synthetic stereo pairs for two different types of topographies. Stereo triplet was used to generate DEM for Himalayan mountain topography to overcome the problem of occlusions. For flat to undulating topography it was shown that using Cartosat-1 synthetic stereo pair with look angles of -26° and +26° will produce improved version of DEM. Planimetric and height accuracy (Root Mean Square Error (RMSE)) of less than 2.5 m and 2.95 m respectively were obtained and qualitative analysis shows finer details in comparison with other DEMs. For rugged terrain and steep slopes of Himalayan mountain topography simple stereo pairs may not provide reliable accuracies in DEMs due to occlusions and shadows. Stereo triplet from Cartosat-1 was used to generate DEM for mountainous topography. This DEM shows better reconstruction of elevation model even at occluded region when compared with simple stereo pair based DEM. Planimetric and height accuracy (RMSE) of nearly 3 m were obtained and qualitative analysis shows reduction of outliers at occluded region.

  16. Evaluation of topographic index in relation to terrain roughness and DEM grid spacing

    Indian Academy of Sciences (India)

    Samadrita Mukherjee; Sandip Mukherjee; R D Garg; A Bhardwaj; P L N Raju

    2013-06-01

    Topographic index is an important attribute of digital elevation model (DEM) which indicates soil saturation. It is used for estimation of run-off, soil moisture, depth of ground water and hydrological simulation. Topographic index is derived from DEMs; hence the accuracy of DEM influences its computation. Commonly the raster based grid DEM is widely used to simulate hydrological model parameter, and accuracy varies with respect to DEM grid size and morphological characteristics of terrain. In this study topographic index is evaluated in terms of DEM grid size and terrain roughness. The study was carried out on four small watersheds, having different roughness characteristics, located over the Himalayan terrain. Topographic index surface is derived for each watershed from different grid spacing DEM (10–150 m), analysed and validated. It is found that DEM grid spacing affects the topographic index. The surface representation is smooth in the coarse grid spacing and the pattern of topographic index changes with grid spacing. The spatial autocorrelation of topographic index surface reduces when calculated from larger spacing DEM. The mean of the topographic index surface increases and standard deviation decreases with the increase of grid spacing and the effect is more pronounced in the rough terrain. Accuracy of the topographic index is also evaluated with respect to grid spacing and terrain roughness by comparing the topographic index surface with respect to reference data (10 m grid spacing topographic index surface). The RMSE and mean error of topographic index surface increases in larger grid spacing and the effect is more in rugged terrain.

  17. Effective simulation of flexible lateral boundaries in two-and three-dimensional DEM simulations

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Discrete element method (DEM) models to simulate laboratory element tests play an important role in advancing our understanding of the mechanics of granular material response, including bonded or cemented, particulate materials.Comparisons of the macro-scale response observed in a real physical test and a "virtual" DEM-simulated test can calibrate or validate DEM models.The detailed, particle scale information provided in the DEM simulation can then be used to develop our understanding of the material behaviour.It is important to accurately model the physical test boundary conditions in these DEM simulations.This paper specifically considers triaxial tests as these tests are commonly used in soil mechanics.In a triaxial test,the test specimen of granular material is enclosed within a flexible latex membrane that allows the material to deform freely during testing, while maintaining a specified stress condition. Triaxial tests can only be realistically simulated in 3D DEM codes, however analogue,2D, biaxial DEM simulations are also often considered as it is easier to visualize particle interactions in two dimensions. This paper describes algorithms to simulate the lateral boundary conditions imposed by the latex membrane used in physical triaxial tests in both 2D and 3D DEM simulations.The importance of carefully considering the lateral boundary conditions in DEM simulations is illustrated by considering a 2D biaxial test on a specimen of frictional unbonded disks and a 3D triaxial test on a bonded (cemented) specimen of spheres. The comparisons indicate that the lateral boundary conditions have a more significant influence on the local,particle-scale response in comparison with the overall macro-scale observations.

  18. TanDEM-X双站SAR干涉测量及研究进展%TanDEM-X bistatic SAR interferometry and its research progress

    Institute of Scientific and Technical Information of China (English)

    孙亚飞; 江利明; 柳林; 孙永玲; 汪汉胜

    2015-01-01

    This paper comprehensively describes the scientific research plan of the TanDEM -X/TerraSAR -X bistatic SAR mission, with emphasis placed on its scientific objectives, TanDEM-X satellite parameters, orbital configuration and data acquisition modes. Then, the advantages of the new InSAR techniques including bistatic SAR, Pol-InSAR and digital beam forming are briefly discussed and the progress of the techniques of TanDEM-X bistatic SAR interferometry is analyzed. These new SAR techniques will greatly promote the application potential of SAR interferometry in Earth sciences such as global topography mapping, glaciology, oceanography and geology.%较全面、系统地介绍了TanDEM-X/TerraSAR-X双站SAR科学计划,重点涉及其科学目标、TanDEM-X卫星参数、轨道结构以及干涉数据获取模式等相关内容,并讨论了双站SAR成像、极化InSAR和数字波束成形等干涉测量新技术及其研究进展。这些双站SAR新技术的实现将大大地推动SAR干涉测量在全球地形测绘、冰川学、海洋学及地质学等领域中的应用。

  19. Thermal neutron capture cross sections for the {sup 152}Sm(n,{gamma}){sup 153}Sm and {sup 154}Sm(n,{gamma}){sup 155}Sm reactions at 0.0536 eV energy

    Energy Technology Data Exchange (ETDEWEB)

    Uddin, M.S. [Institute of Nuclear Science and Technology, Atomic Energy Research Establishment, Savar, GPO Box No. 3787, Dhaka 1000 (Bangladesh)], E-mail: shuza88@yahoo.co.in; Chowdhury, M.H. [Department of Physics, Comilla Victoria Government College, Comilla (Bangladesh); Department of Physics, Jahangirnagar University, Savar, Dhaka (Bangladesh); Hossain, S.M.; Latif, Sk.A.; Islam, M.A.; Hafiz, M.A.; Mubin, S.H.; Zakaria, A.K.M.; Yunus, S.M. [Institute of Nuclear Science and Technology, Atomic Energy Research Establishment, Savar, GPO Box No. 3787, Dhaka 1000 (Bangladesh); Azharul Islam, S.M. [Department of Physics, Jahangirnagar University, Savar, Dhaka (Bangladesh)

    2008-11-15

    The neutron capture cross sections for the {sup 152}Sm(n,{gamma}){sup 153}Sm and {sup 154}Sm(n,{gamma}){sup 155}Sm reactions at 0.0536 eV neutron energy were measured using an activation technique based on the TRIGA Mark-II research reactor, relative to the reference reaction {sup 197}Au(n,{gamma}){sup 198}Au. The activity was measured nondestructively using gamma-ray spectroscopy. Our measured values at this neutron energy are the first ones and are compared with 1/v based evaluated cross sections reported in the ENDF/B-VII and JENDL-3.3 libraries. The measured value for the {sup 152}Sm(n,{gamma}){sup 153}Sm reaction is 0.28% lower than JENDL-3.3 and 0.48% higher than ENDF/B-VII. Our value for the production of {sup 155}Sm is about 3% and 2.3% higher than the evaluated value with ENDF/B-VII and JENDL-3.3 at 0.0536 eV, respectively.

  20. Adjuvant simultaneous radiochemotherapy following radical hysterectomy for patients with cervical cancers in high-risk situation. Results of a pilot study; Adjuvante simultane Radiochemotherapie nach operiertem Uteruszervixkarzinom in der High-Risk-Situation. Ergebnisse einer Pilotuntersuchung

    Energy Technology Data Exchange (ETDEWEB)

    Haensgen, G.; Kuhnt, T.; Pigorsch, S.; Dunst, J. [Halle-Wittenberg Univ., Halle (Germany). Klinik und Poliklinik fuer Strahlentherapie; Strauss, H. [Klinik fuer Gynaekologie der Martin-Luther-Univ. Halle/Wittenberg (Germany)

    2002-02-01

    Background: The most important factors for prognosis of cervical cancers are age and histological criteria such as the tumor size, the involvement of lymph nodes, lympho-vascular space involvement as well as microvessel involvement and poor tumor differentiation (grading 3). Here we present the results of concomitant chemo-radiation at high-risk situation of patients with cervical cancer after surgery. Patients and Methods: The study comprised 34 patients with median age of 40 years (26-63 years) after Wertheim surgical technique for cervical cancer at the FIGO Stages IB (n = 19) and IIB (n = 15). All patients were treated between November 1995 and June 1999 by a schedule of concomitant chemoradiation. The indication for this treatment was given by the positive histological proof of lymph node metastasis, microvessel or lympho-vascular space involvement as well as a G3 grading. The chemo-therapy was given in week 1 and 5 (day 1-5 and day 29-33). The dosage of cisplatin was 20 mg/m{sup 2}/d on every day and 5-FU was given as a 120-h infusion with 600 mg/m{sup 2}/d. The external beam radiotherapy was applied to the pelvis with 1.8 Gy per fraction up to 50.4-54 Gy. In two patients the paraaortal region was irradiated too because of the involvement of these lymph nodes. Results: The median observation time was 48 months (3-68 months). 30 patients are alive (88%) in complete response. Four patients died. The mean survival was 61 {+-} 3 months. We have seen only slight acute toxicities of grade 1 and 2. Three patients suffered from a grade 3 diarrhea and three patients developed a grade 3 leukopenia. In seven patients we found a secondary lymphedema as a late toxicity. Conclusion: The concomitant chemoradiation containing cisplatin in high-risk situation for cervical cancer after surgery improves the outcome and survival in these patients. (orig.) [German] Hintergrund: Entscheidend fuer die Prognose nach operiertem Uteruszervixkarzinom sind neben dem Alter

  1. DEM Simulation of Particle Clogging in Fiber Filtration

    Science.gov (United States)

    Tao, Ran; Yang, Mengmeng; Li, Shuiqing

    2015-11-01

    The formation of porous particle deposits plays a crucial role in determining the efficiency of filtration process. In this work, an adhesive discrete element method (DEM), in combination with CFD, is developed to dynamically describe these porous deposit structures and the changed flow field between two parallel fibers under the periodic boundary conditions. For the first time, it is clarified that the structures of clogged particles are dependent on both the adhesion parameter (defined as the ratio of interparticle adhesion to particle inertia) and the Stokes number (as an index of impaction efficiency). The relationship between the pressure-drop gradient and the coordination number along the filtration time is explored, which can be used to quantitatively classify the different filtration regimes, i.e., clean filter stage, clogging stage and cake filtration stage. Finally, we investigate the influence of the fiber separation distance on the particle clogging behavior, which affects the collecting efficiency of the fibers significantly. The results suggest that changing the arrangement of fibers can improve the filter performance. This work has been funded by the National Key Basic Research and Development Program (2013CB228506).

  2. Modelling die filling with charged particles using DEM/CFD

    Institute of Scientific and Technical Information of China (English)

    Emmanuel Nkem Nwose; Chunlei Pei; Chuan-Yu Wu

    2012-01-01

    The effects of electrostatic charge on powder flow behaviour during die filling in a vacuum and in air were analysed using a coupled discrete element method and computational fluid dynamics (DEM/CFD) code,in which long range electrostatic interactions were implemented.The present 2D simulations revealed that both electrostatic charge and the presence of air can affect the powder flow behaviour during die filling.It was found that the electrostatic charge inhibited the flow of powders into the die and induced a loose packing structure.At the same filling speed,increasing the electrostatic charge led to a decrease in the fill ratio which quantifies the volumetric occupancy of powder in the die.In addition,increasing the shoe speed caused a further decrease in the fill ratio,which was characterised using the concept of critical filling speed.When the electrostatic charge was low,the air/particle interaction was strong so that a lower critical filling speed was obtained for die filling in air than in a vacuum.With high electrostatic charge,the electrostatic interactions became dominant.Consequently,similar fill ratio and critical filling speed were obtained for die filling in air and in a vacuum.

  3. Evaluation of DEM generation accuracy from UAS imagery

    Science.gov (United States)

    Santise, M.; Fornari, M.; Forlani, G.; Roncella, R.

    2014-06-01

    The growing use of UAS platform for aerial photogrammetry comes with a new family of Computer Vision highly automated processing software expressly built to manage the peculiar characteristics of these blocks of images. It is of interest to photogrammetrist and professionals, therefore, to find out whether the image orientation and DSM generation methods implemented in such software are reliable and the DSMs and orthophotos are accurate. On a more general basis, it is interesting to figure out whether it is still worth applying the standard rules of aerial photogrammetry to the case of drones, achieving the same inner strength and the same accuracies as well. With such goals in mind, a test area has been set up at the University Campus in Parma. A large number of ground points has been measured on natural as well as signalized points, to provide a comprehensive test field, to check the accuracy performance of different UAS systems. In the test area, points both at ground-level and features on the buildings roofs were measured, in order to obtain a distributed support also altimetrically. Control points were set on different types of surfaces (buildings, asphalt, target, fields of grass and bumps); break lines, were also employed. The paper presents the results of a comparison between two different surveys for DEM (Digital Elevation Model) generation, performed at 70 m and 140 m flying height, using a Falcon 8 UAS.

  4. Julia Obertreis, Anke Stephan (Hg.): Erinnerungen nach der Wende. Oral History und (post)sozialistische Gesellschaften. Essen: Klartext Verlag 2009.

    OpenAIRE

    Sabine Kittel

    2011-01-01

    Im Sammelband wird eine breite Palette von Forschungen zu Postsozialismus und biographischen Erinnerungen an die sozialistische Vergangenheit vorgestellt. Autorinnen und Autoren aus zwölf Ländern diskutieren laufende oder gerade abgeschlossene Dissertationsprojekte, die alle auf Oral-History-Interviews basieren. Indem die Erinnerungen der Menschen Ausgangspunkt der Betrachtung sind, gelingt es in dem Band, unterschiedlichste Lebenswelten und individuelle Umgangsweisen mit der vergangenen sozi...

  5. Applying the Artificial Neural Network to Predict the Soil Responses in the DEM Simulation

    Science.gov (United States)

    Li, Z.; Chow, J. K.; Wang, Y. H.

    2017-06-01

    This paper aims to bridge the soil properties and the soil response in the discrete element method (DEM) simulation using the artificial neural network (ANN). The network was designed to output the stress-strain-volumetric response from inputting the soil properties. 31 biaxial shearing tests with varying soil parameters were generated using the DEM simulations. Based on these 31 training samples, a three-layer neural network was established. 2 extra samples were generated to examine the validity of the network, and the predicted curves using the ANN were well matched with those from the DEM simulations. Overall, the ANN was found promising in effectively modelling the soil behaviour.

  6. Simulation of the Surface Hydrology of Dalinghe Watershed Automatically Based on SRTM DEM

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    [Objective] The aim was to simulate the surface water flow of Dalinghe watershed based on SRTM DEM.[Method] By using ArcGIS ModelBuilder,and SRTM DEM data of Dalinghe watershed as input data,the model to simulate the water flow of Dalinghe watershed was set up.[Result] The model realized automatic division of Dalinghe watershed area and extraction of stream network.In the meantime,it also made the choice of threshold during filling DEM and extracting stream network much easier.The division of the Dalinghe w...

  7. A major Sm epitope anchored to sequential oligopeptide carriers is a suitable antigenic substrate to detect anti-Sm antibodies.

    Science.gov (United States)

    Petrovas, C J; Vlachoyiannopoulos, P G; Tzioufas, A G; Alexopoulos, C; Tsikaris, V; Sakarellos-Daitsiotis, M; Sakarellos, C; Moutsopoulos, H M

    1998-11-01

    A sensitive, highly reproducible, solid-phase enzyme immunoassay (ELISA), was developed in order to investigate whether the synthetic heptapeptide PPGMRPP-a major epitope of the Sm autoantigen-anchored in five copies to a sequential oligopeptide carrier (SOC), [(PPGMRPP)5-SOC5] is a suitable antigenic substrate to identify anti-Sm/antibodies. Sera with different autoantibody specificities [45 anti-Sm, 40 anti-U1RNP, 40 anti-Ro (SSA)/La(SSB) positive, 21 Antinuclear antibody positive, but negative for antibodies to extractable nuclear antigens (ANA + /ENA - ) and 75 normal human sera, ANA negative] and 75 sera from patients with rheumatoid arthritis (RA) were tested for anti-(PPGMRPP)5-(SOC)5 reactivity in order to evaluate the specificity and sensitivity of the method to detect anti-Sm antibodies. RNA immunoprecipitation assays for the detection of anti-Sm and anti-U1RNP antibodies and counter immunoelectrophoresis (CIE) for the detection of anti-Ro(SSA) and anti-La(SSB) antibodies were used as reference techniques. The sensitivity of the method was 98% and the specificity was 68% for the determination of anti-Sm antibodies, while for the determination of anti-Sm and/or anti-U1RNP reactivity (antibodies to snRNPs) the corresponding values were 82% and 86%, respectively. In a comparison of the above assay with an ELISA, using Sm/U1RNP purified complex as immobilized antigen it was shown that the sensitivity of the anti-Sm/U1RNP ELISA in detecting anti-snRNPs was 74%; in addition sera with anti-Sm antibodies gave higher binding in the anti-(PPGMRPP)5-(SOC)5 ELISA compared with anti-Sm/U1RNP ELISA. Intra- and inter-assay precision was measured on four sera with reactivities extending into a wide range of absorbance values showed that the intra-assay coefficient of variation (CV%) ranged from 2.7 to 6 and the inter-assay CV% ranged from 9 to 14.5. These results indicate that the PPGMRPP peptide anchored to a pentameric SOC as a carrier is a suitable antigen for

  8. Die Zukunft - Definition von Subtypen aus dem Formenkreis der Multiplen Sklerose

    Directory of Open Access Journals (Sweden)

    Berger T

    2001-01-01

    Full Text Available Multiple Sklerose ist keine homogene Krankheitsentität, sondern ein heterogener Formenkreis entzündlich-demyelinisierender ZNS-Erkrankungen mit variablen klinischen Verläufen und vor allem unterschiedlichem, nicht prognostizierbarem Ansprechen auf therapeutische Interventionen. Rezente neuropathologische Erkenntnisse haben ein Umdenken in der immunpathogenetischen Betrachtung der Multiplen Sklerose eingeleitet. Die Heterogenität der Multiplen Sklerose erfordert eine zukünftig differenziertere Subtypisierung der Patienten nach genetischen, klinischen, neuroradiologischen, neuropathologischen und neuroimmunologischen Parametern. Damit wäre es erstmals möglich, Patienten nach einem differentialtherapeutischen Konzept spezifisch für eine individuelle Therapie zu selektionieren und damit den Erfolg bisheriger Therapiestrategien drastisch zu verbessern.

  9. The Sm-Nd history of KREEP. [in lunar rocks

    Science.gov (United States)

    Lugmair, G. W.; Carlson, R. W.

    1978-01-01

    Sm-Nd whole rock measurements on a variety of KREEP-rich samples from different landing sites are reported. Despite a variation of Nd and Sm concentrations of almost a factor of 3, the Sm-Nd ratios, as well as the Nd-143/Nd-144 values, show an extremely close grouping. No systematic differences between samples from different landing sites are resolved. These results are taken to be indicative of a moon-wide process having been responsible for the generation of the KREEP source reservoir, 4.36 plus or minus 0.06 AE ago, as estimated from model age calculation.

  10. Determination of the {sup 151}Sm half-life

    Energy Technology Data Exchange (ETDEWEB)

    Be, Marie-Martine; Cassette, Philippe [CEA, LIST, Gif sur Yvette (France). LNE-Laboratoire National Henri Becquerel; Isnard, Helene [CEA-LANIE, Gif sur Yvette (France); and others

    2015-07-01

    New measurements have been undertaken to determine the half-life of {sup 151}Sm. A pure {sup 151}Sm solution was obtained after chemical separation from a samarium solution resulting from the dissolution of an irradiated samarium sample. The concentration of {sup 151}Sm in the solution was measured by mass spectrometry, combined with the isotope dilution technique. The activity of the solution was measured by liquid scintillation counting by six European laboratories as part of an international comparison. These combined results lead to a half-life of T{sub 1/2} = 94.6(6)a.

  11. Scintillation, Afterglow and Thermoluminescence of CsI:Tl,Sm

    Science.gov (United States)

    Kappers, L. A.; Bartram, R. H.; Hamilton, D. S.; Lempicki, A.; Brecher, C.; Gaysinskiy, V.; Ovechkina, E. E.; Nagarkar, V. V.

    2010-11-01

    Experiments on co-doped CsI:Tl,Sm suggest that samarium electron traps scavenge electrons from thallium traps and that electrons subsequently released by samarium recombine non-radiatively with trapped holes, thus suppressing afterglow. These experiments support the inference that electrons tunnel freely between samarium ions and are trapped preferentially as substitutional Sm+ near VKA(Tl+) centers where non-radiative recombination is the rate-limiting step. Combined radioluminescence, afterglow and thermoluminescence on single-crystal samples of CsI:Tl and CsI:Tl,Sm, recorded sequentially at adjusted gain settings following low-temperature irradiation, reveal reversible radiation damage as well.

  12. PHONON SOFTENING IN INTERMEDIATE VALENT SmB6

    OpenAIRE

    Mörke, I.; Wachter, P.

    1981-01-01

    We have measured the Raman spectrum of a SmB6 single crystal and compared it to LaB6 and EuB6. Beside the three high energy Raman active phonons we found additional excitations in these compounds. Most prominent is a peak at 172 cm-1 for SmB6, 214 cm-1 for LaB6 and 220 cm-1 for EuB6. The spectra are analysed in terms of defect induced phonon scattering. The softening of the line in intermediate valent (IV) SmB6 is explained in analogy with the phonon anomalies found in other IV compounds.

  13. Luminescence properties of the Sm-doped borate glasses

    Energy Technology Data Exchange (ETDEWEB)

    Kindrat, I.I. [University of Zielona Góra, Institute of Physics, Division of Spectroscopy of Functional Materials, 4a Szafrana Street, 65-516 Zielona Góra (Poland); Padlyak, B.V., E-mail: B.Padlyak@if.uz.zgora.pl [University of Zielona Góra, Institute of Physics, Division of Spectroscopy of Functional Materials, 4a Szafrana Street, 65-516 Zielona Góra (Poland); Vlokh Institute of Physical Optics, 23 Dragomanov Street, 79-005 Lviv (Ukraine); Drzewiecki, A. [University of Zielona Góra, Institute of Physics, Division of Spectroscopy of Functional Materials, 4a Szafrana Street, 65-516 Zielona Góra (Poland)

    2015-10-15

    The optical absorption and photoluminescence (emission and excitation) spectra as well as decay kinetics of a series of the Sm-doped glasses with Li{sub 2}B{sub 4}O{sub 7}, LiKB{sub 4}O{sub 7}, CaB{sub 4}O{sub 7}, and LiCaBO{sub 3} compositions were investigated and analysed. The Li{sub 2}B{sub 4}O{sub 7}:Sm, LiKB{sub 4}O{sub 7}:Sm, CaB{sub 4}O{sub 7}:Sm, and LiCaBO{sub 3}:Sm glasses of high optical quality have been obtained from the corresponding polycrystalline compounds in the air atmosphere, using a standard glass technology. On the basis of electron paramagnetic resonance (EPR) and optical spectra analysis it was shown that the samarium impurity is incorporated into the glass network as Sm{sup 3+} (4f{sup 5}, {sup 6}H{sub 5/2}) ions, exclusively. All observed 4f – 4f transitions of the Sm{sup 3+} centres in the optical absorption and luminescence spectra of the investigated glasses are identified. Most intense emission band of the Sm{sup 3+} ions peaked about 598 nm ({sup 4}G{sub 5/2} → {sup 6}H{sub 7/2} transition) is characterised by a single exponential decay with typical lifetime values, which depend on the basic glass composition as well as concentration and local structure of the Sm{sup 3+} luminescence centres. The quantum efficiency has been evaluated for observed transitions of the Sm{sup 3+} centres using obtained experimental lifetimes and radiative lifetimes calculated by Judd–Ofelt theory. The calculated high quantum efficiencies and measured quantum yields of luminescence show that the investigated borate glasses are perspective luminescence materials. Energy transfer from the Ce{sup 3+} non-controlled impurity and intrinsic luminescence centres to the Sm{sup 3+} centres has been observed. Peculiarities of the Sm{sup 3+} local structure in the network of investigated glasses have been discussed based on the obtained spectroscopic results and structural data. - Highlights: • The Sm-doped Li{sub 2}B{sub 4}O{sub 7}, LiKB{sub 4}O{sub 7}, Ca

  14. Magnetic properties of Sm5Fe17 melt-spun ribbons and their borides

    Directory of Open Access Journals (Sweden)

    Tetsuji Saito

    2015-10-01

    Full Text Available Sm5Fe17 melt-spun ribbons exhibited low coercivity and partly or mostly consisted of the amorphous phase. Annealing of Sm5Fe17 melt-spun ribbon resulted in the formation of the Sm5Fe17 phase. The annealed Sm5Fe17 melt-spun ribbon exhibited a high coercivity. It was found that the addition of B to the Sm5Fe17 alloy resulted in the promotion of the Sm2Fe14B phase. Annealed Sm5Fe17Bx (x = 0.5 melt-spun ribbons consisted of the Sm5Fe17 phase together with the Sm2Fe14B and SmFe2 phases. On the other hand, annealed Sm5Fe17Bx (x = 1.0-1.5 melt-spun ribbons consisted of the Sm2Fe14B and SmFe2 phases without the Sm5Fe17 phase. The resultant Sm5Fe17Bx (x = 1.0-1.5 melt-spun ribbons still showed a coercivity of around 2 kOe. The annealed Sm5Fe17 melt-spun ribbon exhibited a high coercivity over 25 kOe and a remanence of 40 emu/g, whereas the annealed Sm5Fe17B1.0 melt-spun ribbon exhibited a high remanence of 65 emu/g and a coercivity of 2.0 kOe.

  15. Influence of combustion air guidance on solid matter burnout and on pollutant emissions in grid incinerators; Einfluss der Verbrennungsluftfuehrung auf den Feststoffabbrand und auf das Schadstoffverhalten bei der Hausmuellverbrennung auf dem Rost

    Energy Technology Data Exchange (ETDEWEB)

    Hunsinger, H.; Seifert, H. [Forschungszentrum Karlsruhe GmbH Technik und Umwelt (Germany). Inst. fuer Technische Chemie

    2003-07-01

    The contribution investigates the influence of combustion air guidance strategies on process optimisation. In particular, it is investigated if efficient burnout correlates with low pollutant emissions and if the effects are similar or contrary for the different process goals. (orig.) [German] Der Einfluss von Brennstoffqualitaeten, der Ofengeometrie sowie von Feuerungsbetriebsparametern auf die Bildungsraten von Schadstoffen wie PCDD/F und NO{sub x} und auf die Transferraten von Schwermetallen, Chlor- und Schwefelverbindungen aus dem Brennstoffbett ins Rauchgas ist zur Zeit nur ungenuegend bekannt. Besonders die Frage, wie die primaere Forderung nach moeglichst vollstaendigem Ausbrand von Rauchgas und Rostasche mit weiteren Zielen wie niedrige Bildungsraten von Schadstoffen und Inertisierung der Rostasche korreliert, zeigt den Bedarf umfassender systematischer Untersuchungen auf. Im Rahmen dieses Beitrags soll als Beispiel fuer Modifikationen des Verbrennungsprozesses der Einfluss unterschiedlicher Verbrennungsluftfuehrungen auf die aufgefuehrten Optimierungsziele vorgestellt werden. Insbesondere soll der Frage nachgegangen werden, ob ein effizienter Ausbrand mit niedrigen Schadstoffbildungsraten korreliert und ob zwischen den Zielgroessen gleiche oder kontraere Wirkungen auftreten. (orig.)

  16. The snRNP core protein SmB and tissue-specific SmN protein are differentially distributed between snRNP particles.

    Science.gov (United States)

    Huntriss, J D; Latchman, D S; Williams, D G

    1993-01-01

    The SmN protein is a tissue specific component of the small nuclear ribonucleoprotein particle which is closely related to the ubiquitously expressed SmB protein but is expressed only in the brain and heart. To investigate the function of SmN, its localisation within different snRNP particles was investigated using a range of anti-snRNP monoclonal antibodies. SmN and SmB were found to exhibit different patterns of association with snRNP particles in two cell lines, ND7 and F9 which express SmN. In both cases, SmN was found to be present in the U-2 snRNP but was excluded from the U-1 snRNPs whereas SmB was present in both U-1 and U-2 snRNPs. Data from transfected 3T3 mouse fibroblasts cell lines artificially expressing a low level of SmN also confirm this observation. In contrast, SmN was found to be an integral component of both the U-1 and U-2 snRNPs in both 3T3 cells artificially expressing high levels of SmN and in adult rat brain which has a naturally high level of SmN expression. Taken together, the results suggest that the pre-U1 snRNP particle has a lower affinity for SmN than for SmB. Thus, SmN expressed at low levels incorporates into U2, but SmN expressed at high levels incorporates into both U1 and U2 snRNPs and replaces SmB. The significance of these effects is discussed in terms of the potential role played by SmN in constitutive and alternative splicing pathways in neuronal cells. Images PMID:8371979

  17. Coastal Topography--Northeast Atlantic Coast, Post-Hurricane Sandy, 2012: Digital elevation model (DEM)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — A DEM was produced for a portion of the New York, Delaware, Maryland, Virginia, and North Carolina coastlines, post-Hurricane Sandy (Sandy was an October 2012...

  18. Digital Elevation Model (DEM), Topographic survey of Eureka Township, Published in unknown, Eureka County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Digital Elevation Model (DEM) dataset, was produced all or in part from Field Survey/GPS information as of unknown. It is described as 'Topographic survey of...

  19. VT Lidar Hydro-flattened DEM (1.6 meter) - 2008 - West Franklin

    Data.gov (United States)

    Vermont Center for Geographic Information — (Link to Metadata) This metadata applies to the following collection area(s): Missisquoi Lower 2008 1.6m and Digital Elevation Model (DEM) datasets of various...

  20. Digital elevation models (DEMs) of the Elwha River delta, Washington, September 2013

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of the data release presents a digital elevation model (DEM) derived from bathymetry and topography data of the Elwha River delta collected in September...

  1. A seamless, high-resolution, coastal digital elevation model (DEM) for Southern California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — A seamless, three-meter digital elevation model (DEM) was constructed for the entire Southern California coastal zone, extending 473 km from Point Conception to the...

  2. Digital elevation models (DEMs) of the Elwha River delta, Washington, May 2011

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of the data release presents a digital elevation model (DEM) derived from bathymetry and topography data of the Elwha River delta collected in May 2011....

  3. VT Lidar Hydro-flattened DEM (1.6 meter) - 2010 - East Franklin/West Orleans

    Data.gov (United States)

    Vermont Center for Geographic Information — (Link to Metadata) This metadata applies to the following collection area(s): Missisquoi Upper 2010 1.6m and Digital Elevation Model (DEM) datasets of various...

  4. VT Lidar Hydro-flattened DEM (0.7 meter) - 2014 - Chittenden, Lamoille, Orleans, & Washington Counties

    Data.gov (United States)

    Vermont Center for Geographic Information — (Link to Metadata) This metadata applies to the following collection area(s): Eastern VT 2014 0.7m and Digital Elevation Model (DEM) dataset of the following...

  5. VT Lidar Hydro-flattened DEM (0.7 meter) - 2015 - Windham County

    Data.gov (United States)

    Vermont Center for Geographic Information — (Link to Metadata) This metadata applies to the following collection area(s): Windham County 2015 0.7m and Digital Elevation Model (DEM) dataset of the following...

  6. Digital elevation models (DEMs) of the Elwha River delta, Washington, August 2011

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of the data release presents a digital elevation model (DEM) derived from bathymetry and topography data of the Elwha River delta collected in August 2011....

  7. Digital Elevation Model (DEM), Published in unknown, DeKalb County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Digital Elevation Model (DEM) dataset, was produced all or in part from LIDAR information as of unknown. Data by this publisher are often provided in State...

  8. VT Lidar Hydro-flattened DEM (1.6 meter) - 2012 - Addison

    Data.gov (United States)

    Vermont Center for Geographic Information — (Link to Metadata) This metadata applies to the following collection area(s): Addison County 2012 1.6m and Digital Elevation Model (DEM) datasets of various...

  9. A Vector-based Method for the Extraction of Catchment from Grid DEMs

    Institute of Scientific and Technical Information of China (English)

    ZHU Qing; TIAN Yixiang

    2005-01-01

    The methodology of catchment extraction especially from regular grid digital elevation models (DEMs) is briefly reviewed.Then an efficient algorithm, which combines vector process and traditional neighbourhood raster process, is designed for extracting the catchments and subcatchments from depressionless DEMs.The catchment area of each river in the grid DEM data is identified and delineated, then is divided into subcatchments as required.Compared to traditional processes, this method for identifying catchments focuses on the boundaries instead of the area inside the catchments and avoids the boundary intersection phenomena.Last, the algorithm is tested with a set of DEMs of different sizes, and the result proves that the computation efficiency and accuracy are better than existent methods.

  10. A seamless, high-resolution, coastal digital elevation model (DEM) for Southern California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — A seamless, three-meter digital elevation model (DEM) was constructed for the entire Southern California coastal zone, extending 473 km from Point Conception to the...

  11. Digital elevation models (DEMs) of the Elwha River delta, Washington, July 2016

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of the data release presents a digital elevation model (DEM) derived from bathymetry and topography data of the Elwha River delta collected in July 2016....

  12. Digital elevation models (DEMs) of the Elwha River delta, Washington, September 2010

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of the data release presents a digital elevation model (DEM) derived from bathymetry and topography data of the Elwha River delta collected in September...

  13. Digital elevation models (DEMs) of the Elwha River delta, Washington, August 2012

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of the data release presents a digital elevation model (DEM) derived from bathymetry and topography data of the Elwha River delta collected in August 2012....

  14. Como diagnosticar as quatro causas mais freqüentes de demência?

    OpenAIRE

    Caramelli Paulo; Barbosa Maira Tonidandel

    2002-01-01

    Doença de Alzheimer, demência vascular, demência com corpos de Lewy e demência frontotemporal são as quatro causas mais freqüentes de demência na prática clínica. O diagnóstico diferencial dessas condições se baseia na busca de perfis clínicos característicos por anamnese adequada, exame neurológico e avaliação neuropsicológica, além de investigação complementar pertinente, que consiste em exames laboratoriais e de neuroimagem. O presente artigo apresenta breve revisão das características pri...

  15. On the potential of very high-resolution repeat DEMs in glacial and periglacial environments

    Directory of Open Access Journals (Sweden)

    J. Abermann

    2010-01-01

    Full Text Available The potential of high-resolution repeat DEMs was investigated for glaciological applications including periglacial features (e.g. rock glaciers. It was shown that glacier boundaries can be delineated using airborne LIDAR-DEMs as a primary data source and that information on debris cover extent could be extracted using multi-temporal DEMs. Problems and limitations are discussed, and accuracies quantified. Absolute deviations of airborne laser scanning (ALS derived glacier boundaries from ground-truthed ones were below 4 m for 80% of the ground-truthed values. Overall, we estimated an accuracy of +/−1.5% of the glacier area for glaciers larger than 1 km2. The errors in the case of smaller glaciers did not exceed +/−5% of the glacier area. The use of repeat DEMs in order to obtain information on the extent, characteristics and activity of rock glaciers was investigated and discussed based on examples.

  16. San Francisco Bay-Delta bathymetric/topographic digital elevation model(DEM)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — A high-resolution (10-meter per pixel) digital elevation model (DEM) was created for the Sacramento-San Joaquin Delta using both bathymetry and topography data. This...

  17. Hydrologic validation of a structure-from-motion DEM derived from low-altitude UAV imagery

    Science.gov (United States)

    Steiner, Florian; Marzolff, Irene; d'Oleire-Oltmanns, Sebastian

    2015-04-01

    The increasing ease of use of current Unmanned Aerial Vehicles (UAVs) and 3D image processing software has spurred the number of applications relying on high-resolution topographic datasets. Of particular significance in this field is "structure from motion" (SfM), a photogrammetric technique used to generate low-cost digital elevation models (DEMs) for erosion budgeting, measuring of glaciers/lava-flows, archaeological applications and others. It was originally designed to generate 3D-models of buildings, based on unordered collections of images and has become increasingly common in geoscience applications during the last few years. Several studies on the accuracy of this technique already exist, in which the SfM data is mostly compared with Lidar-generated terrain data. The results are mainly positive, indicating that the technique is suitable for such applications. This work aims at validating very high resolution SfM DEMs with a different approach: Not the original elevation data is validated, but data on terrain-related hydrological and geomorphometric parameters derived from the DEM. The study site chosen for this analysis is an abandoned agricultural field near the city of Taroudant, in the semi-arid southern part of Morocco. The site is characterized by aggressive rill and gully erosion and is - apart from sparsely scattered shrub cover - mainly featureless. An area of 5.7 ha, equipped with 30 high-precision ground control points (GCPs), was covered with an unmanned aerial vehicle (UAV) in two different heights (85 and 170 m). A selection of 160 images was used to generate several high-resolution DEMs (2 and 5 cm resolution) of the area using the fully automated SfM software AGISOFT Photoscan. For comparison purposes, a conventional photogrammetry-based workflow using the Leica Photogrammetry Suite was used to generate a DEM with a resolution of 5 cm (LPS DEM). The evaluation is done by comparison of the SfM DEM with the derived orthoimages and the LPS DEM

  18. Processing, validating, and comparing DEMs for geomorphic application on the Puna de Atacama Plateau, northwest Argentina

    Science.gov (United States)

    Purinton, Benjamin; Bookhagen, Bodo

    2016-04-01

    This study analyzes multiple topographic datasets derived from various remote-sensing methods from the Pocitos Basin of the central Puna Plateau in northwest Argentina at the border to Chile. Here, the arid climate and clear atmospheric conditions and lack of vegetation provide ideal conditions for remote sensing and Digital Elevation Model (DEM) comparison. We compare the following freely available DEMs: SRTM-X (spatial resolution of ~30 m), SRTM-C v4.1 (90 m), and ASTER GDEM2 (30 m). Additional DEMs for comparison are generated from optical and radar datasets acquired freely (ASTER Level 1B stereo pairs and Sentinal-1A radar), through research agreements (RapidEye Level 1B scenes, ALOS radar, and ENVISAT radar), and through commercial sources (TerraSAR-X / TanDEM-X radar). DEMs from ASTER (spatial resolution of 15 m) and RapidEye (~5-10 m) optical datasets are produced by standard photogrammetric techniques and have been post-processed for validation and alignment purposes. Because RapidEye scenes are captured at a low incidence angle (validated against over 400,000 differential GPS (dGPS) measurements gathered during four field campaigns in 2012 and 2014 to 2016. Of these points, more than 250,000 lie within the Pocitos Basin with average vertical and horizontal accuracies of 0.95 m and 0.69 m, respectively. Dataset accuracy is judged by the lowest standard deviations of elevation compared with the dGPS data and with the SRTM-X control DEM. Of particular interest in the field of quantitative geomorphology are topometrics (e.g., relief, channel steepness, and hillslope concavity) derived from the DEMs. The accuracy of these metrics is partly dependent on the overall DEM accuracy, but also on the accuracy of the depiction of the river network (a small areal fraction of the DEM). In addition, several topometrics depend on the first and second derivative of elevation (slope and curvature), which are affected by DEM accuracy and noise. In light of these issues

  19. Glacier Volume Change Estimation Using Time Series of Improved Aster Dems

    Science.gov (United States)

    Girod, Luc; Nuth, Christopher; Kääb, Andreas

    2016-06-01

    Volume change data is critical to the understanding of glacier response to climate change. The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) system embarked on the Terra (EOS AM-1) satellite has been a unique source of systematic stereoscopic images covering the whole globe at 15m resolution and at a consistent quality for over 15 years. While satellite stereo sensors with significantly improved radiometric and spatial resolution are available to date, the potential of ASTER data lies in its long consistent time series that is unrivaled, though not fully exploited for change analysis due to lack of data accuracy and precision. Here, we developed an improved method for ASTER DEM generation and implemented it in the open source photogrammetric library and software suite MicMac. The method relies on the computation of a rational polynomial coefficients (RPC) model and the detection and correction of cross-track sensor jitter in order to compute DEMs. ASTER data are strongly affected by attitude jitter, mainly of approximately 4 km and 30 km wavelength, and improving the generation of ASTER DEMs requires removal of this effect. Our sensor modeling does not require ground control points and allows thus potentially for the automatic processing of large data volumes. As a proof of concept, we chose a set of glaciers with reference DEMs available to assess the quality of our measurements. We use time series of ASTER scenes from which we extracted DEMs with a ground sampling distance of 15m. Our method directly measures and accounts for the cross-track component of jitter so that the resulting DEMs are not contaminated by this process. Since the along-track component of jitter has the same direction as the stereo parallaxes, the two cannot be separated and the elevations extracted are thus contaminated by along-track jitter. Initial tests reveal no clear relation between the cross-track and along-track components so that the latter seems not to be

  20. Nuclear Sm antigens in the sperm of different organisms.

    Science.gov (United States)

    Delgado, F; Brito, M; Concha, I I; Schroeder, R; Burzio, L O

    1994-08-01

    Immunoblot analysis of sperm protein from several species revealed the presence of polypeptides recognised by anti-Sm sera obtained from patients with systemic lupus erythematosus. Immunoreactive polypeptides in human, bull, mouse and rat sperm were identified as protein B', B and D as compared with the Sm polypeptides of HeLa cells. In the sperm of rooster, the teleost fish Cyprinus carpio and the mussel Choromytilus chorus, the immunoreactive polypeptide profile was more complex. To ascertain the sperm origin of the Sm antigens, immunolocalisation with anti-Sm serum was carried out. The results demonstrated that in all the species studied staining was confined to the sperm nucleus, confirming that some polypeptides of the small nuclear ribonucleoprotein complex are present in the gamete.

  1. Prevenciniai smūgiai kaip politikos priemonė

    OpenAIRE

    Jakštaitė, Gerda

    2008-01-01

    XXI a. iškilus asimetrinio pobūdžio grėsmėms (terorizmui, masinio naikinimo ginklų plitimui), atkreiptas dėmesys į prevencinius smūgius kaip naują gynybos priemonę. Pirmoji apie tai prabilo JAV. Ketinimą panaudoti prevencinius smūgius išreiškė ir Rusija, D. Britanija, Izraelis, tačiau JAV kol kas yra vienintelė, panaudojusi tokią politikos priemonę. Kyla klausimas, ar JAV pavyzdžiu nepaseks ir kitos valstybės. Straipsnyje, pasitelkus tam tikrus faktorius ir JAV atvejį kaip prevencinį smūgį pa...

  2. The simultaneous mass and energy evaporation (SM2E) model.

    Science.gov (United States)

    Choudhary, Rehan; Klauda, Jeffery B

    2016-01-01

    In this article, the Simultaneous Mass and Energy Evaporation (SM2E) model is presented. The SM2E model is based on theoretical models for mass and energy transfer. The theoretical models systematically under or over predicted at various flow conditions: laminar, transition, and turbulent. These models were harmonized with experimental measurements to eliminate systematic under or over predictions; a total of 113 measured evaporation rates were used. The SM2E model can be used to estimate evaporation rates for pure liquids as well as liquid mixtures at laminar, transition, and turbulent flow conditions. However, due to limited availability of evaporation data, the model has so far only been tested against data for pure liquids and binary mixtures. The model can take evaporative cooling into account and when the temperature of the evaporating liquid or liquid mixture is known (e.g., isothermal evaporation), the SM2E model reduces to a mass transfer-only model.

  3. HELI-DEM portal for geo-processing services

    Science.gov (United States)

    Cannata, Massimiliano; Antonovic, Milan; Molinari, Monia

    2014-05-01

    HELI-DEM (Helvetia-Italy Digital Elevation Model) is a project developed in the framework of Italy/Switzerland Operational Programme for Trans-frontier Cooperation 2007-2013 whose major aim is to create a unified digital terrain model that includes the alpine and sub-alpine areas between Italy and Switzerland. The partners of the project are: Lombardy Region, Piedmont Region, Polytechnic of Milan, Polytechnic of Turin and Fondazione Politecnico from Italy; Institute of Earth Sciences (SUPSI) from Switzerland. The digital terrain model has been produced by integrating and validating the different elevation data available for the areas of interest, characterized by different reference frame, resolutions and accuracies: DHM at 25 m resolution from Swisstopo, DTM at 20 m resolution from Lombardy Region, DTM at 5 m resolution from Piedmont Region and DTM LiDAR PST-A at about 1 m resolution, that covers the main river bed areas and is produced by the Italian Ministry of the Environment. Further results of the project are: the generation of a unique Italian Swiss geoid with an accuracy of few centimeters (Gilardoni et al. 2012); the establishment of a GNSS permanent network, prototype of a transnational positioning service; the development of a geo-portal, entirely based on open source technologies and open standards, which provides the cross-border DTM and offers some capabilities of analysis and processing through the Internet. With this talk, the authors want to present the main steps of the project with a focus on the HELI-DEM geo-portal development carried out by the Institute of Earth Sciences, which is the access point to the DTM outputted from the project. The portal, accessible at http://geoservice.ist.supsi.ch/helidem, is a demonstration of open source technologies combined for providing access to geospatial functionalities to wide non GIS expert public. In fact, the system is entirely developed using only Open Standards and Free and Open Source Software (FOSS

  4. ASTER Global DEM contribution to GEOSS demonstrates open data sharing

    Science.gov (United States)

    Sohre, T.; Duda, K. A.; Meyer, D. J.; Behnke, J.; Nasa Esdis Lp Daac

    2010-12-01

    across all the GEOSS Societal Benefit areas was shown. The release of the global tiled research-grade DEM resulted in a significant increase in demand for ASTER elevation models, and increased awareness of related products. No cost access to these data has also promoted new applications of remotely sensed data, increasing their use across the full range of the GEOSS societal benefit areas. In addition, the simplified data access and greatly expanded pool of users resulted in a number of suggestions from researchers in many disciplines for possible enhancements to future versions of the ASTER GDEM. The broad distribution of the product can be directly attributed to the adoption of fundamental GEOSS data sharing principles, which are directed toward expanded access by minimizing time delay and cost, thus facilitating data use for education, research, and a range of other applications. The ASTER GDEM demonstrated the need and user demand for an improved global DEM product as well as the added benefit of not only “full and open” distribution, but “free and open” distribution.

  5. The topographic grain concept in DEM-based geomorphometric mapping

    Science.gov (United States)

    Józsa, Edina

    2016-04-01

    A common drawback of geomorphological analyses based on digital elevation datasets is the definition of search window size for the derivation of morphometric variables. The fixed-size neighbourhood determines the scale of the analysis and mapping, which can lead to the generalization of smaller surface details or the elimination of larger landform elements. The methods of DEM-based geomorphometric mapping are constantly developing into the direction of multi-scale landform delineation, but the optimal threshold for search window size is still a limiting factor. A possible way to determine the suitable value for the parameter is to consider the topographic grain principle (Wood, W. F. - Snell, J. B. 1960, Pike, R. J. et al. 1989). The calculation is implemented as a bash shell script for GRASS GIS to determine the optimal threshold for the r.geomorphon module. The approach relies on the potential of the topographic grain to detect the characteristic local ridgeline-to-channel spacing. By calculating the relative relief values with nested neighbourhood matrices it is possible to define a break-point where the increase rate of local relief encountered by the sample is significantly reducing. The geomorphons approach (Jasiewicz, J. - Stepinski, T. F. 2013) is a cell-based DEM classification method for the identification of landform elements at a broad range of scales by using line-of-sight technique. The landforms larger than the maximum lookup distance are broken down to smaller elements therefore the threshold needs to be set for a relatively large value. On the contrary, the computational requirements and the size of the study sites determine the upper limit for the value. Therefore the aim was to create a tool that would help to determine the optimal parameter for r.geomorphon tool. As a result it would be possible to produce more objective and consistent maps with achieving the full efficiency of this mapping technique. For the thorough analysis on the

  6. Preparing different phases of Mg-Li-Sm alloys by molten salt electrolysis in LiCl-KCl-MgCl_2-SmCl_3 melts

    Institute of Scientific and Technical Information of China (English)

    韩伟; 田阳; 张密林; 叶克; 赵全友; 魏树权

    2010-01-01

    Different phases of Mg-Li-Sm alloys were prepared by galvanostatic electrolysis in LiCl-KCl-MgCl2-SmCl3 melts at 670 °C.The electrolysis process and phase control of Mg-Li-Sm alloys were studied.The microstructures of α,α+β,β phases of Mg-Li-Sm alloys were characterized by X-ray diffraction(XRD) and optical microscope(OM).Analysis of scanning electron microscopy(SEM) and EDS mapping analysis showed that Mg distributed homogeneously in Mg-Li-Sm alloys.EDS result showed that the distribution of Sm was more at...

  7. Exchange and crystal field in Sm-based magnets. I. Inelastic neutron scattering and high-field magnetization study of Sm2Fe17 and Sm2Fe17N3

    Science.gov (United States)

    Sippel, A.; Jahn, L.; Loewenhaupt, M.; Eckert, D.; Kerschl, P.; Handstein, A.; Müller, K.-H.; Wolf, M.; Kuz'Min, M. D.; Steinbeck, L.; Richter, M.; Teresiak, A.; Bewley, R.

    2002-02-01

    A peak is detected in the high-energy inelastic neutron scattering spectra of Sm2Fe17 and Sm2Fe17N3, which is associated with the intermultiplet transition in the 4f shell of samarium. The peak in the nitride Sm2Fe17N3 is situated at a lower energy (163 meV) as compared with the parent compound Sm2Fe17 (177 meV). The peak position provides direct information on the strength of the exchange field on Sm in both compounds: Bex=380 and 270 T in Sm2Fe17 and Sm2Fe17N3, respectively. The 30% reduction in Bex as a result of nitrogenating Sm2Fe17 is consistent with the earlier discovered similar effect in Gd2Fe17. High-field (B=-28 meV.

  8. An improved method to represent DEM uncertainty in glacial lake outburst flood propagation using stochastic simulations

    Science.gov (United States)

    Watson, Cameron S.; Carrivick, Jonathan; Quincey, Duncan

    2015-10-01

    Modelling glacial lake outburst floods (GLOFs) or 'jökulhlaups', necessarily involves the propagation of large and often stochastic uncertainties throughout the source to impact process chain. Since flood routing is primarily a function of underlying topography, communication of digital elevation model (DEM) uncertainty should accompany such modelling efforts. Here, a new stochastic first-pass assessment technique was evaluated against an existing GIS-based model and an existing 1D hydrodynamic model, using three DEMs with different spatial resolution. The analysis revealed the effect of DEM uncertainty and model choice on several flood parameters and on the prediction of socio-economic impacts. Our new model, which we call MC-LCP (Monte Carlo Least Cost Path) and which is distributed in the supplementary information, demonstrated enhanced 'stability' when compared to the two existing methods, and this 'stability' was independent of DEM choice. The MC-LCP model outputs an uncertainty continuum within its extent, from which relative socio-economic risk can be evaluated. In a comparison of all DEM and model combinations, the Shuttle Radar Topography Mission (SRTM) DEM exhibited fewer artefacts compared to those with the Advanced Spaceborne Thermal Emission and Reflection Radiometer Global Digital Elevation Model (ASTER GDEM), and were comparable to those with a finer resolution Advanced Land Observing Satellite Panchromatic Remote-sensing Instrument for Stereo Mapping (ALOS PRISM) derived DEM. Overall, we contend that the variability we find between flood routing model results suggests that consideration of DEM uncertainty and pre-processing methods is important when assessing flow routing and when evaluating potential socio-economic implications of a GLOF event. Incorporation of a stochastic variable provides an illustration of uncertainty that is important when modelling and communicating assessments of an inherently complex process.

  9. Strategic Material Shortfall Risk Mitigation Optimization Model (OPTIM-SM)

    Science.gov (United States)

    2013-04-01

    contracts, could be added to the existing mix . Market 40 responses to supply and demand shocks could be modeled more explicitly as could...Model (OPTIM-SM) James S. Thomason, Project Leader D. Sean Barnett James P. Bell Jerome Bracken Eleanor L. Schwartz INSTITUTE FOR DEFENSE ANALYSES 4850...Risk Mitigation Optimization Model (OPTIM-SM) James S. Thomason, Project Leader D. Sean Barnett James P. Bell Jerome Bracken Eleanor L. Schwartz iii

  10. Determination and calculation of hazardous incident scenarios in accordance with the 3rd hazardous incident administrative instruction. Vol. 1; Ermittlung und Berechnung von Stoerfallablaufszenarien nach Massgabe der 3. Stoerfallverwaltungsvorschrift. Bd. 1: Methodischer Teil zum Erarbeiten von Stoerfallablaufszenarien

    Energy Technology Data Exchange (ETDEWEB)

    Kaiser, W.; Rogazewski, P.; Schindler, M. [TUeV Anlagentechnik GmbH, Berlin-Schoeneberg (Germany). Unternehmensgruppe TUeV Rheinland/Berlin-Brandenburg; Acikalin, A.; Albrecht, M.; Lambert, M.; Steinbach, J. [Technische Univ. Berlin (Germany)

    2000-07-01

    Stoerfaellen sowie zu Bedingungen des Standortes und der Anlage die erforderlichen Grundannahmen zum Stoerfallablauf gewinnen kann. Unterschieden nach Stofffreisetzungen, Explosionen und Braenden wird jeweils auf die konkreteren Hinweise im Anhang 1 zur Abschaetzung von Quelltermen, im Anhang 2 zur Abschaetzung der Ausbreitung und im Anhang 3 zur Abschaetzung der Auswirkungen verwiesen. Der Anhang 4 enthaelt einige Erlaeuterungen zu den Anhaengen 1 bis 3. Mit einer Sammlung von 15 Beispielen fuer Stoerfallablaufszenarien wird im Anhang 5 das im Leitfaden beschriebene methodische Vorgehen veranschaulicht und erlaeutert. Im Anhang 6 werden die auf dem deutschen Markt erhaeltlichen DV-Programme (Software) zur Berechnung von Stoerfallablaufszenarien beschrieben und kommentiert. Der Band 2 untermauert das Vorgehen im Hinblick auf Berechnungsmethoden, aktuelle Modelle und Modellgleichungen aus wissenschaftlicher Sicht. (orig.)

  11. Early clinical phase of patient's management after polytrauma using 1- and 4-slice helical CT; Fruehes klinisches Management nach Polytrauma mit 1- und 4-Schicht-Spiral-CT

    Energy Technology Data Exchange (ETDEWEB)

    Kloeppel, R.; Kahn, T. [Klinik und Poliklinik fuer Diagnostische Radiologie, Universitaetsklinikum Leipzig (Germany); Schreiter, D. [Chirurgische Intensivtherapieabteilung, Zentrum fuer Chirurgie, Universitaetsklinikum Leipzig (Germany); Dietrich, J. [Abt. Neuroradiologie der Klinik und Poliklinik fuer Diagnostische Radiologie, Universitaetsklinikum Leipzig (Germany); Josten, C. [Klinik und Poliklinik fuer Unfall- und Wiederherstellungschirurgie, Zentrum fuer Chirurgie, Universitaetsklinikum Leipzig (Germany)

    2002-07-01

    In the early clinical phase the comprehensive imaging of patients with multiple trauma using helical CT is already established. Aim of this study was to assess whether MSCT may improve the patient management and the diagnostic results.The procedure is designed as follows: after life-thretening treatment x-ray of chest and ultrasound are carried out in the emergency room. Then the patient is moved to CT. From 1998 to december 2000 241 patients were examined using a single slice helical CT (Somatom plus 4), in 2001 79 patients using a 4-slice helical CT (Somatom VZ, Siemens Med.Sol.). After CT selected radiograms of the extremities were taken.359 of 360 procedures were carried out successfully. Excluding 1 case (death during 1-sl. h CT) all relevant lesions of head, neck, and body were diagnosed. Although the patients had an injury severity score of {approx}30. The change from 1slice-helical CT to 4 slice-helical CT allowed us to reduce the stay in the CT room from 28 to 16 min. The total lethality decreased by {approx}4%.Advantages for the patient arose from the standardized examination protocol using multislice CT. If integrated in an interdisciplinary management concept, it is a good compromise between examination time, comprehensive diagnostic imaging, life-saving therapeutic procedures, and therapy planning. (orig.) [German] Die klinische Erstversorgung Polytraumatisierter schliesst inzwischen in vielen Unfallkliniken den fruehzeitigen Einsatz der Spiral-CT ein. Kann die neuerlich eingefuehrte Mehrschicht-Spiral-CT Ergebnisse und Patientenmanagement weiter verbessern?Nach lebensrettenden Sofortmassnahmen, Thoraxroentgen und Notsonographie im Schockraum erfolgte die CT: Von 1998-2000 wurden 241 Patienten mit einem 1-Schicht-Spiral-CT (Somatom plus 4) und in 2001 79 Patienten mit einem 4-Schicht-Spiral-CT (Somatom VZ, beide Siemens Med. Sol.) untersucht. Klinisch ausgewaehlte Extremitaetenaufnahmen wurden ergaenzt.359 von 360 Untersuchungen verliefen erfolgreich

  12. Determination and calculation of hazardous incident scenarios in accordance with the 3rd hazardous incident administrative instruction. Vol. 2; Ermittlung und Berechnung von Stoerfallablaufszenarien nach Massgabe der 3. Stoerfallverwaltungsvorschrift. Bd. 2: Berechnungsmethoden, aktuelle Modelle und Modellgleichungen

    Energy Technology Data Exchange (ETDEWEB)

    Kaiser, W.; Rogazewski, P.; Schindler, M. [TUeV Anlagentechnik GmbH, Berlin-Schoeneberg (Germany). Unternehmensgruppe TUeV Rheinland/Berlin-Brandenburg; Acikalin, A.; Albrecht, M.; Lambert, M.; Steinbach, J. [Technische Univ. Berlin (Germany)

    2000-07-01

    Stoerfaellen sowie zu Bedingungen des Standortes und der Anlage die erforderlichen Grundannahmen zum Stoerfallablauf gewinnen kann. Unterschieden nach Stofffreisetzungen, Explosionen und Braenden wird jeweils auf die konkreteren Hinweise im Anhang 1 zur Abschaetzung von Quelltermen, im Anhang 2 zur Abschaetzung der Ausbreitung und im Anhang 3 zur Abschaetzung der Auswirkungen verwiesen. Der Anhang 4 enthaelt einige Erlaeuterungen zu den Anhaengen 1 bis 3. Mit einer Sammlung von 15 Beispielen fuer Stoerfallablaufszenarien wird im Anhang 5 das im Leitfaden beschriebene methodische Vorgehen veranschaulicht und erlaeutert. Im Anhang 6 werden die auf dem deutschen Markt erhaeltlichen DV-Programme (Software) zur Berechnung von Stoerfallablaufszenarien beschrieben und kommentiert. Der Band 2 untermauert das Vorgehen im Hinblick auf Berechnungsmethoden, aktuelle Modelle und Modellgleichungen aus wissenschaftlicher Sicht. (orig.)

  13. Monitoring lava dome changes by means of differential DEMs from TanDEM-X interferometry: Examples from Merapi, Indonesia and Volcán de Colima, Mexico

    Science.gov (United States)

    Kubanek, J.; Westerhaus, M.; Heck, B.

    2013-12-01

    Estimating the amount of erupted material during a volcanic crisis is one of the major challenges in volcano research. One way to do this and to discriminate between juvenile and non-juvenile fraction is to assess topographic changes before and after an eruption while using area-wide 3D data. LiDAR or other airborne systems may be a good source, but the recording fails when clouds due to volcanic activity obstruct the sight. In addition, costs as well as logistics are high for local observatories. When dealing with dome-building volcanoes, acquiring the data gets further complicated. As the volcano dome can change rapidly in active phases, it is nearly impossible to collect data at the right time. However, when dealing with gross volume change estimates, at least two data sets - taken directly before and after the eruption - are essential. The innovative German Earth observation mission TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurement) is of great importance to overcome some of these problems. The two almost identical radar satellites TerraSAR-X and TanDEM-X fly in a close formation, thus recording images of the same place on the Earth surface at the same time (bistatic mode). As the radar signal penetrates clouds, digital elevation models (DEMs) of the area of investigation can be generated without problems even with cloud cover. A time series analysis of the differential DEMs therefore opens the possibility to assess volume changes at active lava domes. We choose Merapi in Indonesia and Volcán de Colima in Mexico as test sites. Both volcanoes reside in a state of long term effusive eruption, interrupted every few years by phases of dome destruction, generation of pyroclastic flows and deposition of volcanic material. The availability of extensive ground truth data for both test sites further enables to validate the spaceborne data and results. Here, we analyze lava dome changes due to the hazardous Merapi 2010 eruption. We show a series of DEMs

  14. ArcGeomorphometry: A toolbox for geomorphometric characterisation of DEMs in the ArcGIS environment

    Science.gov (United States)

    Rigol-Sanchez, Juan P.; Stuart, Neil; Pulido-Bosch, Antonio

    2015-12-01

    A software tool is described for the extraction of geomorphometric land surface variables and features from Digital Elevation Models (DEMs). The ArcGeomorphometry Toolbox consists of a series of Python/Numpy processing functions, presented through an easy-to-use graphical menu for the widely used ArcGIS package. Although many GIS provide some operations for analysing DEMs, the methods are often only partially implemented and can be difficult to find and used effectively. Since the results of automated characterisation of landscapes from DEMs are influenced by the extent being considered, the resolution of the source DEM and the size of the kernel (analysis window) used for processing, we have developed a tool to allow GIS users to flexibly apply several multi-scale analysis methods to parameterise and classify a DEM into discrete land surface units. Users can control the threshold values for land surface classifications. The size of the processing kernel can be used to identify land surface features across a range of landscape scales. The pattern of land surface units from each attempt at classification is displayed immediately and can then be processed in the GIS alongside additional data that can assist with a visual assessment and comparison of a series of results. The functionality of the ArcGeomorphometry toolbox is described using an example DEM.

  15. COMPARISON AND CO-REGISTRATION OF DEMS GENERATED FROM HiRISE AND CTX IMAGES

    Directory of Open Access Journals (Sweden)

    Y. Wang

    2016-06-01

    Full Text Available Images from two sensors, the High-Resolution Imaging Science Experiment (HiRISE and the Context Camera (CTX, both on-board the Mars Reconnaissance Orbiter (MRO, were used to generate high-quality DEMs (Digital Elevation Models of the Martian surface. However, there were discrepancies between the DEMs generated from the images acquired by these two sensors due to various reasons, such as variations in boresight alignment between the two sensors during the flight in the complex environment. This paper presents a systematic investigation of the discrepancies between the DEMs generated from the HiRISE and CTX images. A combined adjustment algorithm is presented for the co-registration of HiRISE and CTX DEMs. Experimental analysis was carried out using the HiRISE and CTX images collected at the Mars Rover landing site and several other typical regions. The results indicated that there were systematic offsets between the HiRISE and CTX DEMs in the longitude and latitude directions. However, the offset in the altitude was less obvious. After combined adjustment, the offsets were eliminated and the HiRISE and CTX DEMs were co-registered to each other. The presented research is of significance for the synergistic use of HiRISE and CTX images for precision Mars topographic mapping.

  16. TanDEM-X the Earth surface observation project from space level - basis and mission status

    Directory of Open Access Journals (Sweden)

    Jerzy Wiśniowski

    2015-03-01

    Full Text Available TanDEM-X is DLR (Deutsches Zentrum für Luft- und Raumfahrt the Earth surface observation project using high-resolution SAR interferometry. It opens a new era in space borne radar remote sensing. The system is based on two satellites: TerraSAR-X (TSX and TanDEM-X (TDX flying on the very close, strictly controlled orbits. This paper gives an overview of the radar technology and overview of the TanDEM-X mission concept which is based on several innovative technologies. The primary objective of the mission is to deliver a global digital elevation model (DEM with an unprecedented accuracy, which is equal to or surpass the HRTI-3 specifications (12 m posting, relative height accuracy ±2 m for slope < 20% and ±4 m for slope > 20% [8]. Beyond that, TanDEM-X provides a highly reconfigurable platform for the demonstration of new radar imaging techniques and applications.[b]Keywords[/b]: remote sensing, Bistatic SAR, digital elevation model (DEM, Helix formation, SAR interferomery, HRTI-3, synchronization

  17. Development and Applications of Dome A-DEM in Antarctic Ice Sheet

    Institute of Scientific and Technical Information of China (English)

    LIU Jiying; WEN Jiahong; WANG Yafeng; WANG Weili; Beata M CATHSO; Kenneth C JEZEK

    2007-01-01

    Dome A, the highest dome of East Antarctic Ice Sheet, is being an area focused by international Antarctic community after Chinese Antarctic Expedition finally reached there in 2005, and with the ongoing International Polar Year (IPY) during August 2007. In this paper two data processing methods are used together to generate two 100-m cell size digital elevation models (DEMs) of the Dome A region (Dome A-DEM) by using Cokriging method to interpolate the ICESat GLAS data, with Ihde-DEM as a constraint. It provides fundamental data to glaciological and geophysical investigation in this area. The Dome A-DEM was applied to determining the ice-sheet surface elevations and coordinates of the south and north summits, defining boundaries of basins and ice flowlines, deducing subglacial topography, and mapping surface slope and aspect in Dome A region. The DEM shows there are two (north and south) summits in Dome A region. The coordinate and the surface elevation of the highest point (the north summit) are 80°21'29.86"S, 77°21'50.29"E and 4092.71±1.43m, respectively. The ice thickness and sub-ice bedrock elevation at north summit are 2420m and 1672m, respectively. Dome A region contains four drainage basins that meet together near the south summit. Ice flowlines, slope and aspect in detail are also derived using the DEM.

  18. Energetics of nonequilibrium solidification in Al-Sm

    Science.gov (United States)

    Zhou, S. H.; Napolitano, R. E.

    2008-11-01

    Solution-based thermodynamic modeling, aided by first-principles calculations, is employed here to examine phase transformations in the Al-Sm binary system which may give rise to product phases that are metastable or have a composition that deviates substantially from equilibrium. In addition to describing the pure undercooled Al liquid with a two-state model that accounts for structural ordering, thermodynamic descriptions of the fcc phase, and intermediate compounds ( Al4Sm-β , Al11Sm3-α , Al3Sm-δ , and Al2Sm-σ ) are reanalyzed using special quasirandom structure and first-principles calculations. The possible phase compositions are presented over a range of temperatures using a “Baker-Cahn” analysis of the energetics of solidification and compared with reports of rapid solidification. The energetics associated with varying degrees of chemical partitioning are quantified and compared with experimental observations of the metastable Al11Sm3-α primary phase and reports of amorphous solids.

  19. Crystallization behaviour of Al-Sm amorphous alloys

    Energy Technology Data Exchange (ETDEWEB)

    Battezzati, L. (Dipartimento di Chimica Inorganica, Chimica Fisica e Chimica dei Materiali, Universita di Torino, Via P. Giuria 9, 10125 Torino (Italy)); Baricco, M. (Dipartimento di Chimica Inorganica, Chimica Fisica e Chimica dei Materiali, Universita di Torino, Via P. Giuria 9, 10125 Torino (Italy)); Schumacher, P. (Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge CB2 3QZ (United Kingdom)); Shih, W.C.; Greer, A.L.

    1994-05-01

    Various Al[sub 100-x]Sm[sub x] alloys (10[<=]qslantx[<=]qslant14) have been rapidly solidified by single-roller melt spinning with careful control of the atmosphere in the quenching device. The structural state and subsequent devitrification behaviour of the melt-spun ribbons are found to be particularly sensitive to the quenching conditions. Except for the thinnest ribbons, there are inhomogeneities both through the ribbon thickness and along the length. Both fully and partially amorphous ribbons have been obtained. The crystallization processes of the amorphous phases have been followed by X-ray diffraction, transmission electron microscopy and differential scanning calorimetry (DSC). Al[sub 92]Sm[sub 8] shows primary crystallization of Al, followed by the formation of metastable phases; Al[sub 90]Sm[sub 10] transforms polymorphically to a metastable intermetallic; Al[sub 88]Sm[sub 12] and Al[sub 86]Sm[sub 14] display eutectic crystallization into Al and a metastable mixture of compounds. For Al[sub 90]Sm[sub 10], the DSC traces involve several overlapping peaks. This may be the result of transformations occurring in distinct parts of the ribbon with different mechanisms. A kinetic analysis of the crystallization processes has been performed by means of isothermal and non-isothermal DSC experiments. A discussion of the kinetic parameters derived from Kissinger and Avrami analyses is provided. ((orig.))

  20. 31 CFR 585.315 - Person in the FRY (S&M).

    Science.gov (United States)

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Person in the FRY (S&M). 585.315... General Definitions § 585.315 Person in the FRY (S&M). The term person in the FRY (S&M) includes any... under the laws of any jurisdiction in the FRY (S&M)....

  1. GIFTS SM EDU Data Processing and Algorithms

    Science.gov (United States)

    Tian, Jialin; Johnson, David G.; Reisse, Robert A.; Gazarik, Michael J.

    2007-01-01

    The Geosynchronous Imaging Fourier Transform Spectrometer (GIFTS) Sensor Module (SM) Engineering Demonstration Unit (EDU) is a high resolution spectral imager designed to measure infrared (IR) radiances using a Fourier transform spectrometer (FTS). The GIFTS instrument employs three Focal Plane Arrays (FPAs), which gather measurements across the long-wave IR (LWIR), short/mid-wave IR (SMWIR), and visible spectral bands. The raw interferogram measurements are radiometrically and spectrally calibrated to produce radiance spectra, which are further processed to obtain atmospheric profiles via retrieval algorithms. This paper describes the processing algorithms involved in the calibration stage. The calibration procedures can be subdivided into three stages. In the pre-calibration stage, a phase correction algorithm is applied to the decimated and filtered complex interferogram. The resulting imaginary part of the spectrum contains only the noise component of the uncorrected spectrum. Additional random noise reduction can be accomplished by applying a spectral smoothing routine to the phase-corrected blackbody reference spectra. In the radiometric calibration stage, we first compute the spectral responsivity based on the previous results, from which, the calibrated ambient blackbody (ABB), hot blackbody (HBB), and scene spectra can be obtained. During the post-processing stage, we estimate the noise equivalent spectral radiance (NESR) from the calibrated ABB and HBB spectra. We then implement a correction scheme that compensates for the effect of fore-optics offsets. Finally, for off-axis pixels, the FPA off-axis effects correction is performed. To estimate the performance of the entire FPA, we developed an efficient method of generating pixel performance assessments. In addition, a random pixel selection scheme is designed based on the pixel performance evaluation.

  2. Predictive parameters of infectiologic complications in patients after TIPSS; Praediktive Parameter infektiologischer Komplikationen bei Patienten nach TIPSS-Anlage

    Energy Technology Data Exchange (ETDEWEB)

    Cohnen, M.; Saleh, A.; Moedder, U. [Institut fuer Diagnostische Radiologie, Universitaetsklinikum Duesseldorf (Germany); Luethen, R.; Bode, J.; Haeussinger, D. [Klinik fuer Gastroenterologie, Hepatologie und Infektiologie, Universitaetsklinikum Duesseldorf (Germany); Daeubener, W. [Institut fuer Mikrobiologie und Virologie, Universitaetsklinikum Duesseldorf (Germany)

    2003-02-01

    Aim To define predictive parameters of a complicated clinical course after the TIPSS procedure. Blood cultures were drawn prospectively in 41 patients from a central line and from the portal venous blood before stent placement as well as from the central line 20 min after intervention. C-reactive proteine (CRP) (mg/dl) and white blood cell count (WBC,/{mu}l) on the day of TIPSS-procedure (d0), the first (d1) and seven (d7) days after TIPSS were compared in patients with a complicated clinical course (spontaneous bacterial peritonitis, pneumonia, sepsis; group I) to patients without clinical complications (group II) Group I showed a significant increase in CRP (d0: 1.8{+-}1.0; d1: 3.2{+-}1.5; d7: 4.3{+-}3.2), and white blood cell count (d0: 7700{+-}2600; d1: 10800{+-}2800; d7: 7500{+-}1800) on the first day after TIPSS-procedure in comparison to group II (CRP: d0: 1.6{+-}0.6; d1: 1.8{+-}1.0; d7: 1.9{+-}0.6. WBC: d0: 6900{+-}1500; d1: 8000{+-}1600; d7: 7600{+-}1400).Microbiological analysis showed in 12% skin or oral flora in the last sample. The course of CRP and WBC-count during the first week after TIPSS procedure may indicate patients with a potential risk of a complicated clinical course. (orig.) [German] Fragestellung Definition praediktiver Parameter infektiologischer Komplikationen bei Patienten nach TIPSS-Anlage.Methodik Bei 41 Patienten wurden Blutproben prospektiv vor intrahepatischer Stentanlage zentralvenoes und portalvenoes sowie 20 min postinterventionell erneut zentralvenoes entnommen und mikrobiologisch analysiert. C-reaktives Protein (CRP) (mg/dl) und Leukozytenzahl (/{mu}l) wurden am Interventionstag (d0), am 1. (d1) sowie 7 Tage (d7) postinterventionell bestimmt. Patienten mit kompliziertem Verlauf (spontane bakterielle Peritonitis,Pneumonie, Sepsis; Gruppe 1) wurden von Patienten ohne klinische Komplikationen (Gruppe 2) unterschieden.Ergebnisse Gruppe 1 wies einen signifikanten Anstieg des CRP (d0: 1,8{+-}1,0; d1: 3,2{+-}1,5; d7: 4,3{+-}3,2) und

  3. 高精度CMOS DEM-CCⅡ放大器%High-Precision CMOS DEM-CC Ⅱ Amplifier

    Institute of Scientific and Technical Information of China (English)

    张雷; 成立; 周洋; 张静; 倪雪梅; 王振宇

    2009-01-01

    采用动态元件匹配二代电流传输器(DEM-CCⅡ)技术,设计了一种0.35 μm标准工艺的高精度CMOS放大器.通过比较传统的CMOS运放可知,所设计的CMOS放大器既增大了输出摆幅又减小了输出阻抗,且有效地限制了有限的运放增益对电路性能的影响.仿真实验结果表明,该CMOS放大器增益误差比传统运放的增益误差小38~50倍,精度等级明显提高,因而特别适用于各类检测和信号调理放大器的设计中.%CMOS amplifiers with high-precision was designed in a standard 0.35 μm CMOS process by properly applying dynamic element matching to a second generation current conveyor. Compared with traditional CMOS circuits, the proposed approach alleviates the tradeoff between output swing and output resistance and is more robust against the finite operational amplifier gain. The simulation results show that the gain error is reduced 38~50 times than the gain error of operational amplifiers, and the precision is improved, it is very suitable for the design of various detections and signal conditioning amplifiers.

  4. Peripheral pulsed laser angioplasty - 4-year clinical experience; Periphere gepulste Laserangioplastie - Erfahrungen nach 4jaehrigem klinischen Einsatz

    Energy Technology Data Exchange (ETDEWEB)

    Huppert, P.E. [Tuebingen Univ. (Germany). Abt. fuer Radiologische Diagnostik; Duda, S.H. [Tuebingen Univ. (Germany). Abt. fuer Radiologische Diagnostik; Kalighi, K. [Tuebingen Univ. (Germany). Abt. fuer Thorax-, Herz- und Gefaesschirurgie; Baumbach, A. [Tuebingen Univ. (Germany). Abt. 3, Medizinische Klinik; Seboldt, H. [Tuebingen Univ. (Germany). Abt. fuer Thorax-, Herz- und Gefaesschirurgie; Claussen, C.D. [Tuebingen Univ. (Germany). Abt. fuer Radiologische Diagnostik

    1994-02-01

    In 134 patients, 21 iliac, 91 femoropopliteal and 22 crural arterial occlusions were treated by percutaneous laser-assisteed angioplasty and in 32 patients femoropopliteal occlusions by conventional balloon angioplasty. Laser angioplasty could be performed in 126 patients following initial guide wire recanalisation using 9, 7 and 4.5-F multifibre catheters, respectively. In 72 patients a 308-nm excimer laser and in 54 patients a 504-nm pulsed day laser was used. Luminal opening by laser angioplasty was obtained in 102 of 126 (81%) procedures (9 incomplete catheter passages, 15 persistent occlusions). 95% of iliac, 90% of femoropopliteal and 77% of crural recanalisations including supplemental balloon dilatations (n=105) and stent implantations (n-24) succeeded technically. Clinical success rates at 1 (2) years after angioplasty weere 95% (89%) for iliac, 66% (63%) for femoropopliteal and 57% (50%) for crural treatments. Technical and clinical results of laser-assissted femoropopliteal recanalisations showed no significant differences in comparison to the results of conventional balloon angioplasty. The use of pulsed lasers for the treatment of peripheral arterial occlusive disease would require further technical improvements. (orig.) [Deutsch] Bei 134 Patienten mit arterieller Verschlusskrankheit wurden 21 iliakale, 91 femoropopliteale und 22 krurale Okklusionen einer Behandlung durch perkutane laserassistierte Angioplastie zugefuehrt und bei 32 Patienten femoropoliteale Okklusionen vergleichsweise einer konventionellen Ballonangioplastie. 126 Laserangioplastien konnten mit 9, 7 und 4,5-F-Multifaserkathetern nach initialer Fuehrungsdrahtpassage durchgefuehrt werden. Bei 72 Eingriffen wurde ein 308-nm-Excimerlaser und bei 54 ein 405-nm-Farbstofflaser verwendet. Eine Lumeneroeffnung gelang bei 102 von 126 (81%) Laserangioplastien (9 inkomplette Katheterpassagen, 15 persistierende Okklusionen). 95% iliakaler, 90% femoropoplitealer und 77% kruraler laserassistierter

  5. Kardiovaskuläres Risikoverhalten und Lebensstilmodifikation nach INTERHEART: Eine evaluierende Studie des Österreichischen Herzverbands

    Directory of Open Access Journals (Sweden)

    Mastnak W

    2015-01-01

    Full Text Available Hintergrund: Stationäre sowie ambulante Herzrehabilitation sind besonders hinsichtlich kurzer Zeitspannen und physiologischer Parameter gut untersucht. Im Gegensatz dazu liegen zu lebensbegleitenden Anschlussverfahren, in Österreich der Phase IV, selbst auf internationaler Ebene kaum Studien vor, obwohl die Abnahme von Phase-II- und -III-Benefits ohne adäquate Folgeintervention ebenso bekannt ist wie steigendes Rezidivrisiko. Präventionsmedizinisch steht im Hinblick auf Phase IV die Zieltrias: a kardioprotektive Lebensstilmodifikation, b Vorbeugung polymorbider Konsequenzen und c Steigerung der Lebensqualität im Mittelpunkt. Absicht und Ziel: Zur rehabilitationsmedizinisch intendierten Stabilisierung von Gesundheit im Sinne der umfassenden WHO-Definition ist die Abstimmung von ärztlicher Intervention, Lebensstil und individueller Psychodynamik essenziell. Der Österreichische Herzverband (ÖHV versucht durch sein interaktives Profil, den Anspruch an Phase IV einzulösen. Die vorliegende Studie intendiert, die Effizienz von ÖHV-Aktivitäten durch Lebensstilmodifikation nach INTERHEARTPara metern zu objektivieren und zu evaluieren. Methodik: An einem diagnostisch heterogenen, nicht-vorselektierten Sample von aktiven Mitgliedern des ÖHV (n = 204; Alter 41–91 Jahre, Mittelwert 71,8; Standardabweichung 7,8, 48 % kardiovaskulär wurde auf der Grundlage von Patientenselbsteinschätzung Verhaltensmodifikation nach INTERHEART-Kriterien untersucht. Die Datengenerierung erfolgte durch Item-Rating. Ergebnisse: ÖHV-Aktivitäten bewirken die Aufnahme von Gesundheitssport und stellen Hilfen zur Stressreduktion sowie zur Ernährungsumstellung dar. Einfluss auf Diabetes-Risikobewusstsein sowie Kontrolle von Alkohol- und Rauchverhalten sind nur an einer kleinen Untergruppe nachweisbar. Sozialkontakte erhöhen die Lebensqualität und geben subjektive Sicherheit. Schlussfolgerungen: Phase-IV-Herzsport hat sich dynamisch an sportkardiologischen Standards

  6. Dense Fe-Rich Ejecta in Supernova Remnants DEM L238 and DEM L249: A New Class of Type Ia Supernova?

    CERN Document Server

    Borkowski, K J; Reynolds, S P

    2006-01-01

    We present observations of two LMC supernova remnants (SNRs), DEM L238 and DEM L249, with the Chandra and XMM-Newton X-ray satellites. Bright central emission, surrounded by a faint shell, is present in both remnants. The central emission has an entirely thermal spectrum dominated by strong Fe L-shell lines, with the deduced Fe abundance in excess of solar and not consistent with the LMC abundance. This Fe overabundance leads to the conclusion that DEM L238 and DEM L249 are remnants of thermonuclear (Type Ia) explosions. The shell emission originates in gas swept up and heated by the blast wave. A standard Sedov analysis implies about 50 solar masses in both swept-up shells, SNR ages between 10,000 and 15,000 yr, low (< 0.05 cm^-3) preshock densities, and subluminous explosions with energies of 3x10^50 ergs. The central Fe-rich supernova ejecta are close to collisional ionization equilibrium. Their presence is unexpected, because standard Type Ia SNR models predict faint ejecta emission with short ionizati...

  7. Preparation and electromagnetic wave absorption properties of Sm2O3/α-Fe/Sm2Fe17Nx composites

    Science.gov (United States)

    Ye, Jinwen; Liu, Ying; Zhang, Jiao; Chen, Xianfu; Yao, Mingying

    2013-06-01

    Sm2O3/α-Fe/Sm2Fe17Nx composites were prepared in situ by hydrogenation-disproportionation-oxygen-desorption-recombination and nitrogen process, and their electromagnetic wave absorption properties were measured in the frequency range of 0.5-18 GHz. The result showed that saturation magnetization and coercivity of as-prepared powder with 25.3 wt% Sm2O3, 64.4 wt% α-Fe and 10.3 wt% Sm2Fe17N3 were 134.57 emu/g and 654.5 G, respectively. The dielectric constant of composites was low over the frequency range of 0.5-18 GHz, and their resonance frequencies were at a high frequency range. The resin composite of Sm2O3/α-Fe/Sm2Fe17N3 exhibited effective electromagnetic wave absorption (RL≤20 dB) in a frequency range 3-9 GHz, for absorber thickness ranging from 3 to 8 mm, respectively. A minimum reflection loss of -53 dB from the samples was observed at 7 GHz with an absorber thickness of 3.59 mm.

  8. SHAPE AND ALBEDO FROM SHADING (SAfS FOR PIXEL-LEVEL DEM GENERATION FROM MONOCULAR IMAGES CONSTRAINED BY LOW-RESOLUTION DEM

    Directory of Open Access Journals (Sweden)

    B. Wu

    2016-06-01

    Full Text Available Lunar topographic information, e.g., lunar DEM (Digital Elevation Model, is very important for lunar exploration missions and scientific research. Lunar DEMs are typically generated from photogrammetric image processing or laser altimetry, of which photogrammetric methods require multiple stereo images of an area. DEMs generated from these methods are usually achieved by various interpolation techniques, leading to interpolation artifacts in the resulting DEM. On the other hand, photometric shape reconstruction, e.g., SfS (Shape from Shading, extensively studied in the field of Computer Vision has been introduced to pixel-level resolution DEM refinement. SfS methods have the ability to reconstruct pixel-wise terrain details that explain a given image of the terrain. If the terrain and its corresponding pixel-wise albedo were to be estimated simultaneously, this is a SAfS (Shape and Albedo from Shading problem and it will be under-determined without additional information. Previous works show strong statistical regularities in albedo of natural objects, and this is even more logically valid in the case of lunar surface due to its lower surface albedo complexity than the Earth. In this paper we suggest a method that refines a lower-resolution DEM to pixel-level resolution given a monocular image of the coverage with known light source, at the same time we also estimate the corresponding pixel-wise albedo map. We regulate the behaviour of albedo and shape such that the optimized terrain and albedo are the likely solutions that explain the corresponding image. The parameters in the approach are optimized through a kernel-based relaxation framework to gain computational advantages. In this research we experimentally employ the Lunar-Lambertian model for reflectance modelling; the framework of the algorithm is expected to be independent of a specific reflectance model. Experiments are carried out using the monocular images from Lunar Reconnaissance

  9. Shape and Albedo from Shading (SAfS) for Pixel-Level dem Generation from Monocular Images Constrained by Low-Resolution dem

    Science.gov (United States)

    Wu, Bo; Chung Liu, Wai; Grumpe, Arne; Wöhler, Christian

    2016-06-01

    Lunar topographic information, e.g., lunar DEM (Digital Elevation Model), is very important for lunar exploration missions and scientific research. Lunar DEMs are typically generated from photogrammetric image processing or laser altimetry, of which photogrammetric methods require multiple stereo images of an area. DEMs generated from these methods are usually achieved by various interpolation techniques, leading to interpolation artifacts in the resulting DEM. On the other hand, photometric shape reconstruction, e.g., SfS (Shape from Shading), extensively studied in the field of Computer Vision has been introduced to pixel-level resolution DEM refinement. SfS methods have the ability to reconstruct pixel-wise terrain details that explain a given image of the terrain. If the terrain and its corresponding pixel-wise albedo were to be estimated simultaneously, this is a SAfS (Shape and Albedo from Shading) problem and it will be under-determined without additional information. Previous works show strong statistical regularities in albedo of natural objects, and this is even more logically valid in the case of lunar surface due to its lower surface albedo complexity than the Earth. In this paper we suggest a method that refines a lower-resolution DEM to pixel-level resolution given a monocular image of the coverage with known light source, at the same time we also estimate the corresponding pixel-wise albedo map. We regulate the behaviour of albedo and shape such that the optimized terrain and albedo are the likely solutions that explain the corresponding image. The parameters in the approach are optimized through a kernel-based relaxation framework to gain computational advantages. In this research we experimentally employ the Lunar-Lambertian model for reflectance modelling; the framework of the algorithm is expected to be independent of a specific reflectance model. Experiments are carried out using the monocular images from Lunar Reconnaissance Orbiter (LRO

  10. Radiological findings, evaluation and treatment of patellofemoral pain after total knee arthroplasty; Radiologische Diagnostik, Beurteilung und Behandlung des patellofemoralen Schmerzes nach primaerer Knieendoprothetik

    Energy Technology Data Exchange (ETDEWEB)

    Springorum, H.R.; Keshmiri, A.; Heers, G.; Renkawitz, T.; Grifka, J.; Baier, C. [Asklepios Klinikum Bad Abbach, Orthopaedische Klinik fuer die Universitaet Regensburg, Bad Abbach (Germany)

    2012-11-15

    Total knee arthroplasty (TKA) is one of the most successful operative procedures over the last decades in orthopedic surgery; however, some patients suffer from pain, limited range of motion, instability, infections or other complications postoperatively. Patellofemoral pain (PFP) in particular is a common problem after TKA and often necessitates revision surgery. Mainly increasing and localized contact pressure and patella maltracking are held responsible for PFP but the reasons vary. Diagnostics and therapy of PFP is not easy to manage and should be treated following a clinical pathway. The authors suggest that patients with PFP should be categorized after basic diagnostic measures according to the suspected diagnosis: (1) tendinosis, (2) mechanical reasons, (3) intra-articular non-mechanical reasons and (4) neurogenic/psychiatric reasons. Efficient application of special diagnostic measures and further therapy is facilitated by this classification. (orig.) [German] Die endoprothetische Versorgung des Kniegelenks ist eine Operation mit hohem Zugewinn an Lebensqualitaet. Dennoch sind je nach Literaturstelle bis zu 50% der Patienten von Schmerzen, Bewegungseinschraenkung, Instabilitaet, Infektion oder anderen Komplikationen betroffen. Insbesondere der patellofemorale Schmerz (PFS) ist eine haeufige Komplikation nach primaerer Knieendoprothetik und wird je nach Literatur mit 1-50% der Faelle angegeben. Insbesondere der erhoehte retropatellare Anpressdruck und eine schlechte Fuehrung der Patella werden fuer den PFS verantwortlich gemacht, doch die Ursachen sind vielfaeltig. Diagnostik und Behandlung sind komplex und sollten strukturiert durchgefuehrt werden. Nach der Basisdiagnostik schlagen die Autoren daher eine Einteilung in eine der 4 Gruppen vor: (1) Tendinosen, (2) mechanische Probleme, (3) intraartikulaere nichtmechanische Probleme, (4) neurogene/psychische Probleme. Durch die Einteilung in diese verschiedenen Gruppen werden eine effiziente spezielle

  11. Therapeutische Effekte von Ibandronsäure, Kalzium und Vitamin D bei Patienten mit Osteopenie oder Osteoporose nach Magenresektion oder Gastrektomie

    OpenAIRE

    Schwitalla, Andreas

    2006-01-01

    Einleitung. In der Vergangenheit wurde wiederholt über Störungen der Kalziumregulation nach Magenresektion oder Gastrektomie berichtet. Die aufgezeigten Veränderungen gingen mit einer hohen Prävalenz von Osteopenie, Osteoporose oder Wirbelkörperfrakturen und einem erhöhten peripheren und zentralen Frakturrisiko einher. Bisher konnte jedoch der genaue Pathomechanismus dieser Kalziumregulations- und Knochenstoffwechselstörungen nicht geklärt werden. Experimentelle und klinische Studien deuteten...

  12. Determination of hydrocarbonemissions from floating roof tanks/follow up. Measurements after 5 years of operation; Ermittlung von Kohlenwasserstoffemissionen aus Schwimmdachtanks/Fortschreibung. Messungen nach 5 Jahren Betriebszeit

    Energy Technology Data Exchange (ETDEWEB)

    Altmann, B.R. [Deutsche Wissenschaftliche Gesellschaft fuer Erdoel, Erdgas und Kohle e.V., Hamburg (Germany); Biernath-Wuepping, S. [IGU - Institut fuer Gewaesserschutz und Umgebungsueberwachung Dr. Biernath-Wuepping GmbH, Kiel (Germany); Weitzel, T. [MERO Pipeline GmbH, Vohburg (Germany)

    2002-03-01

    In addition to the calculation of emissions, it had been decided in the process of the approval for the MERO tank depot in Vohburg (Germany), that measurements of total hydrocarbons and benzene emissions had to be carried out on one of the four floating roof tanks, directly after commissioning as well as after about five years of operation. Following commissioning the measurements and calculations of emissions were carried out in 1996 and published in the DGMK research report 515 'Determination of hydrocarbon emissions from floating roof tanks'. In September 2001, the measurements were repeated after 5 years of operation. As determined in 2001 the concentrations of hydrocarbons contained in the air which moves to or from the tank proved to be close to the limit of evidence of the measuring devices or insignificantly increased (1 ppm). They were in the same order of magnitude as those of 1996. Thus the results show that the emission behaviour did not deteriorate during the time of operation, provided the floating roof seals are well maintained. (orig.) [German] Im Zuge des Genehmigungsverfahrens fuer das MERO-Tanklager in Vohburg wurde festgelegt, zusaetzlich zu den Emissionsberechnungen Emissionsmessungen (Gesamt-Kohlenwasserstoffe, Benzol) an einem der vier Schwimmdachtanks nach Inbetriebnahme und nach etwa fuenf Jahren Betriebszeit durchzufuehren. Die Emissionsmessungen und Emissionsberechnungen nach Inbetriebnahme wurden 1996 durchgefuehrt und im DGMK-Forschungsbericht 515 'Ermittlung der Kohlenwasserstoffemissionen aus Schwimmdachtanks' veroeffentlicht. Im September 2001 fanden die Wiederholungsmessungen nach 5 Jahren Betriebszeit statt. Im Vergleich zu den 1996 ermittelten geringen Kohlenwasserstoffgehalten in der den Tank an - und vom Tank wegstroemenden Luft wurden in 2001 wiederum nur Gehalte um die Messgeraetenachweisgrenze oder geringfuegig erhoeht (1 ppm) gemessen. Die Ergebnisse zeigen, dass bei gut gewarteten Schwimmdach

  13. Bathymetric survey of water reservoirs in north-eastern Brazil based on TanDEM-X satellite data.

    Science.gov (United States)

    Zhang, Shuping; Foerster, Saskia; Medeiros, Pedro; de Araújo, José Carlos; Motagh, Mahdi; Waske, Bjoern

    2016-11-15

    Water scarcity in the dry season is a vital problem in dryland regions such as northeastern Brazil. Water supplies in these areas often come from numerous reservoirs of various sizes. However, inventory data for these reservoirs is often limited due to the expense and time required for their acquisition via field surveys, particularly in remote areas. Remote sensing techniques provide a valuable alternative to conventional reservoir bathymetric surveys for water resource management. In this study single pass TanDEM-X data acquired in bistatic mode were used to generate digital elevation models (DEMs) in the Madalena catchment, northeastern Brazil. Validation with differential global positioning system (DGPS) data from field measurements indicated an absolute elevation accuracy of approximately 1m for the TanDEM-X derived DEMs (TDX DEMs). The DEMs derived from TanDEM-X data acquired at low water levels show significant advantages over bathymetric maps derived from field survey, particularly with regard to coverage, evenly distributed measurements and replication of reservoir shape. Furthermore, by mapping the dry reservoir bottoms with TanDEM-X data, TDX DEMs are free of emergent and submerged macrophytes, independent of water depth (e.g. >10m), water quality and even weather conditions. Thus, the method is superior to other existing bathymetric mapping approaches, particularly for inland water bodies. The proposed approach relies on (nearly) dry reservoir conditions at times of image acquisition and is thus restricted to areas that show considerable water levels variations. However, comparisons between TDX DEM and the bathymetric map derived from field surveys show that the amount of water retained during the dry phase has only marginal impact on the total water volume derivation from TDX DEM. Overall, DEMs generated from bistatic TanDEM-X data acquired in low water periods constitute a useful and efficient data source for deriving reservoir bathymetry and show

  14. Role of SM22 in the differential regulation of phasic vs. tonic smooth muscle.

    Science.gov (United States)

    Rattan, Satish; Ali, Mehboob

    2015-04-01

    Preliminary proteomics studies between tonic vs. phasic smooth muscles identified three distinct protein spots identified to be those of transgelin (SM22). The latter was found to be distinctly downregulated in the internal anal sphincter (IAS) vs. rectal smooth muscle (RSM) SMC. The major focus of the present studies was to examine the differential molecular control mechanisms by SM22 in the functionality of truly tonic smooth muscle of the IAS vs. the adjoining phasic smooth muscle of the RSM. We monitored SMC lengths before and after incubation with pFLAG-SM22 (for SM22 overexpression), and SM22 small-interfering RNA. pFLAG-SM22 caused concentration-dependent and significantly greater relaxation in the IAS vs. the RSM SMCs. Conversely, temporary silencing of SM22 caused contraction in both types of the SMCs. Further studies revealed a significant reverse relationship between the levels of SM22 phosphorylation and the amount of SM22-actin binding in the IAS and RSM SMC. Data showed higher phospho-SM22 levels and decreased SM22-actin binding in the IAS, and reverse to be the case in the RSM SMCs. Experiments determining the mechanism for SM22 phosphorylation in these smooth muscles revealed that Y-27632 (Rho kinase inhibitor) but not Gö-6850 (protein kinase C inhibitor) caused concentration-dependent decreased phosphorylation of SM22. We speculate that SM22 plays an important role in the regulation of basal tone via Rho kinase-induced phosphorylation of SM22.

  15. Visualization and comparison of DEM-derived parameters. Application to volcanic areas

    Science.gov (United States)

    Favalli, Massimiliano; Fornaciai, Alessandro

    2017-08-01

    Digital Elevation Models (DEMs) are fruitfully used in volcanology as the topographic base for mapping and quantifying volcanic landforms. The increasing availability of free topographic data on the web, decreasing production costs for high-accuracy data and advances in computer technology, has triggered rapid growth of the number of DEM users in the volcanological community. DEMs are often visualized only as hill-shaded maps, and while this is among the major advantages in using them, the possibility of deriving a very large number of parameters from a single grid of elevation data makes DEMs a powerful tool for morphometric analysis. However, many of these parameters have almost the same informative content, and before starting to elaborate topographic data it is recommended to know a-priori what parameters best visualize the investigated landform, and therefore what is necessary and what is redundant. In this work, we review a number of analytical procedures used to parameterize and represent DEMs. A LIDAR-derived DEM matrix acquired over the Valle del Bove valley, on Mt. Etna, is used as test-case elevation data for deriving the parameters. We first review well known parameters such as hill-shading, slope and aspect, curvature, and roughness, before extending the review to some less common parameters such as Sky View Factor (SVF), openness, and Red Relief Image Maps (RRIM). For each parameter a description is given emphasizing how it can be used for identifying and delimiting specific volcanic elements. The analyzed surface parameters are then cross-compared in order to infer which of them is most uncorrelated, and the results are represented in the form of a correlation matrix. Finally, the reviewed DEM-derived parameters and the correlation matrix are used for analyzing the volcanic landforms of two case studies: Michoacán-Guanajuato volcanic field and a phonolitic lava flow at the Island of Tenerife.

  16. CFD-DEM simulations of current-induced dune formation and morphological evolution

    Science.gov (United States)

    Sun, Rui; Xiao, Heng

    2016-06-01

    Understanding the fundamental mechanisms of sediment transport, particularly those during the formation and evolution of bedforms, is of critical scientific importance and has engineering relevance. Traditional approaches of sediment transport simulations heavily rely on empirical models, which are not able to capture the physics-rich, regime-dependent behaviors of the process. With the increase of available computational resources in the past decade, CFD-DEM (computational fluid dynamics-discrete element method) has emerged as a viable high-fidelity method for the study of sediment transport. However, a comprehensive, quantitative study of the generation and migration of different sediment bed patterns using CFD-DEM is still lacking. In this work, current-induced sediment transport problems in a wide range of regimes are simulated, including 'flat bed in motion', 'small dune', 'vortex dune' and suspended transport. Simulations are performed by using SediFoam, an open-source, massively parallel CFD-DEM solver developed by the authors. This is a general-purpose solver for particle-laden flows tailed for particle transport problems. Validation tests are performed to demonstrate the capability of CFD-DEM in the full range of sediment transport regimes. Comparison of simulation results with experimental and numerical benchmark data demonstrates the merits of CFD-DEM approach. In addition, the improvements of the present simulations over existing studies using CFD-DEM are presented. The present solver gives more accurate prediction of sediment transport rate by properly accounting for the influence of particle volume fraction on the fluid flow. In summary, this work demonstrates that CFD-DEM is a promising particle-resolving approach for probing the physics of current-induced sediment transport.

  17. Effects of LiDAR Derived DEM Resolution on Hydrographic Feature Extraction

    Science.gov (United States)

    Yang, P.; Ames, D. P.; Glenn, N. F.; Anderson, D.

    2010-12-01

    This paper examines the effect of LiDAR-derived digital elevation model (DEM) resolution on digitally extracted stream networks with respect to known stream channel locations. Two study sites, Reynolds Creek Experimental Watershed (RCEW) and Dry Creek Experimental Watershed (DCEW), which represent terrain characteristics for lower and intermediate elevation mountainous watersheds in the Intermountain West, were selected as study areas for this research. DEMs reflecting bare earth ground were created from the LiDAR observations at a series of raster cell sizes (from 1 m to 60 m) using spatial interpolation techniques. The effect of DEM resolution on resulting hydrographic feature (specifically stream channel) derivation was studied. Stream length, watershed area, and sinuosity were explored at each of the raster cell sizes. Also, variation from known channel location as estimated by root mean square error (RMSE) between surveyed channel location and extracted channel was computed for each of the DEMs and extracted stream networks. As expected, the results indicate that the DEM based hydrographic extraction process provides more detailed hydrographic features at a finer resolution. RMSE between the known channel location and modeled locations generally increased with larger cell size DEM with a greater effect in the larger RCEW. Sensitivity analyses on sinuosity demonstrated that the resulting shape of streams obtained from LiDAR data matched best with the reference data at an intermediate cell size instead of highest resolution, which is at a range of cell size from 5 to 10 m likely due to original point spacing, terrain characteristics, and LiDAR noise influence. More importantly, the absolute sinuosity deviation displayed a smallest value at the cell size of 10 m in both experimental watersheds, which suggests that optimal cell size for LiDAR-derived DEMs used for hydrographic feature extraction is 10 m.

  18. Side effects in the left kidney after irradiation of the spleen; Strahlenfolgen an der linken Niere nach Milzbestrahlung

    Energy Technology Data Exchange (ETDEWEB)

    Koest, S.; Keinert, K.; Glaser, F.H. [Klinikum Erfurt GmbH (Germany). Klinik fuer Strahlentherapie; Endert, G. [Klinikum Erfurt GmbH (Germany). Klinik fuer Nuklearmedizin

    1998-08-01

    should be followed up at regular intervals on a long-term basis. (orig.) [Deutsch] Hintergrund: Die Strahlentherapie ist ein wesentlicher Bestandteil des Therapiekonzeptes maligner Lymphome. Ist die Einbeziehung der Milz in die Bestrahlung erforderlich, so muss die linke Niere als Risikoorgan besonders beachtet werden. Patienten und Methode: 25 Patienten, bei denen Milzstiel bzw. Milz in die Strahlentherapie einbezogen wurden, wurden nach Abschluss der Strahlentherapie in halbjaehrlichem Abstand szintigraphisch und klinisch nachuntersucht (anderthalb bis viereinhalb Jahre Nachuntersuchungszeit). Fuer 21 der 25 Patienten wurde ein Volumen-Dosis-Histogramm der Nieren angefertigt. Ergebnisse: Eine umschriebene oder die gesamte linke Niere erfassende Aktivitaetsminderbelegung im statischen Nierenszintigramm wurde bei 13 der 25 Patienten nachgewiesen und war in diskreter Auspraegung erstmalig anderhalb bis ein Jahr nach Strahlentherrapie nachweisbar. Die Aktivitaetsminderbelegung bildete sich bei einem Patienten wieder zurueck, bei acht Patienten nahm sie weiter ab, bis ein Speicherdefekt bzw. Schrumpfung der gesamten Niere auftrat. Die Volumen-Dosis-Histogramme zeigen, dass eine Aktivitaetsminderbelegung in der oberen Haelfte hochwahrscheinlich ist, wenn mindestens 40% des Volumens mindestens 20 Gy ausgesetzt sind. Gleiches gilt fuer die Belastung der gesamten Niere. Von den zwoelf Patienten, die keine Aktivitaetsminderbelegung zeigten, waren nur bei drei Patienten 40% des Volumens der linken Niere mit mindestens 20 Gy bestrahlt worden. Durch die Nierensequenzszintigraphie wurde bei elf der 13 Patienten eine Funktionseinschraenkung der linken Niere festgestellt. Der Funktionsanteil der linken Niere an der Gesamtfunktion beider Nieren reduzierte sich auf 16 bis 37%. Ein Patient entwickelte anderthalb Jahre nach der Strahlentherapie eine Hypertonie, alle anderen Patienten zeigten keine klinischen Symptome. Es wurde keine Retention harnpflichtiger Substanzen im Serum gefunden

  19. Effect of DEM resolution on SWAT outputs of runoff, sediment and nutrients

    Directory of Open Access Journals (Sweden)

    S. Lin

    2010-07-01

    Full Text Available Digital Elevation Models (DEMs have been successfully used in a large range of environmental issues. Several methods such as digital contour interpolation and remote sensing have allowed the generation of DEMs, some of which are now freely available for almost the entire globe. The Soil and Water Assessment Tool (SWAT is a widely used semi-distributed model operating at the watershed level and has previously been shown to be very sensitive to the quality of the input topographic information. The objective of this study was to evaluate the impact of DEMs generated from different data sources, respectively DLG5m (local Digital Line Graph, 5 m interval, ASTER30m (1 arc-s ASTER Global DEM Version 1, approximately 30 m resolution, and SRTM90m (3 arc-s SRTM Version 4, approximately 90 m resolution, on SWAT predictions for runoff, sediment, total phosphor (TP and total nitrogen (TN. Eleven resolutions, from 5 m to 140 m, were considered in this study. Results indicate that the predictions of TPs and TNs decreased substantially with coarser resampled resolution. Slightly decreased trends could be found in the predicted sediments when DEMs were resampled to coarser resolutions. Predicted runoffs were not sensitive to resampled resolutions. The predicted outputs based on DLG5m were more sensitive to resampled resolutions than those based on ASTER30m and SRTM90m. At original resolutions, the predicted outputs based on ASTER30m and SRTM90m were similar, but the predicted TNs and TPs based on ASTER30m and SRTM90m were much lower than the one based on DLG5m. For the predicted TNs and TPs, which were substantially sensitive to DEM resolutions, the output accuracies of SWAT derived from ASTER30m and SRTM90m could be improved by down-scaled resampling, but they could not improve on finer DEM (DLG5m at the same resolution. This study helps GIS environmental model users to understand the sensitivities of SWAT to DEM resolution, and choose feasible DEM data for

  20. Comparison of mesh-based and particle-based CFD coupling with DEM

    CERN Document Server

    Markauskas, D; Sivanesapillai, R; Steeb, H

    2016-01-01

    A comparative study on mesh-based and particle-based computational fluid dynamics (CFD) coupling with a discrete element method (DEM) is presented. As the mesh-based CFD method a finite volume method (FVM) is used. A smoothed particle hydrodynamics (SPH) method represents particle-based CFD. An unresolved fluid model with locally averaged Navier-Stokes equations for the fluid is used. A newly developed model of boundary conditions for the SPH is described and the validation tests are performed. With the help of the performed comparative tests, the similarities and differences of particle movements in both DEM-FVM and DEM-SPH methods are discussed. Three test cases, namely a single particle sedimentation test, flow through a porous block and sedimentation of a porous block, are performed using DEM-FVM and DEM-SPH methods. The drag force acting onto the solid particles highly depends on the fluid fraction. To be able to compare both methods, the size of the cell in FVM is chosen to give the same fluid fraction ...

  1. An advanced distributed automated extraction of drainage network model on high-resolution DEM

    Science.gov (United States)

    Mao, Y.; Ye, A.; Xu, J.; Ma, F.; Deng, X.; Miao, C.; Gong, W.; Di, Z.

    2014-07-01

    A high-resolution and high-accuracy drainage network map is a prerequisite for simulating the water cycle in land surface hydrological models. The objective of this study was to develop a new automated extraction of drainage network model, which can get high-precision continuous drainage network on high-resolution DEM (Digital Elevation Model). The high-resolution DEM need too much computer resources to extract drainage network. The conventional GIS method often can not complete to calculate on high-resolution DEM of big basins, because the number of grids is too large. In order to decrease the computation time, an advanced distributed automated extraction of drainage network model (Adam) was proposed in the study. The Adam model has two features: (1) searching upward from outlet of basin instead of sink filling, (2) dividing sub-basins on low-resolution DEM, and then extracting drainage network on sub-basins of high-resolution DEM. The case study used elevation data of the Shuttle Radar Topography Mission (SRTM) at 3 arc-second resolution in Zhujiang River basin, China. The results show Adam model can dramatically reduce the computation time. The extracting drainage network was continuous and more accurate than HydroSHEDS (Hydrological data and maps based on Shuttle Elevation Derivatives at multiple Scales).

  2. Geomorphic change detection using historic maps and DEM differencing: The temporal dimension of geospatial analysis

    Science.gov (United States)

    James, L. Allan; Hodgson, Michael E.; Ghoshal, Subhajit; Latiolais, Mary Megison

    2012-01-01

    The ability to develop spatially distributed models of topographic change is presenting new capabilities in geomorphic research. High resolution maps of elevation change indicate locations, processes, and rates of geomorphic change, and provide a means of calibrating temporal simulation models. Methods of geomorphic change detection (GCD), based on gridded models, may be applied to a wide range of time periods by utilizing cartometric, remote sensing, or ground-based topographic survey data to measure volumetric change. Advantages and limitations of historical DEM reconstruction methods are reviewed with a focus on coupling them with subsequent DEMs to construct DEMs of difference (DoD), which can be created by subtracting one elevation model from another, to map erosion, deposition, and volumetric change. The period of DoD analysis can be extended to several decades if accurate historical DEMs can be generated by extracting topographic data from historical data and selecting areas where geomorphic change has been substantial. The challenge is to recognize and minimize uncertainties in data that are particularly elusive with early topographic data. This paper reviews potential sources of error in digitized topographic maps and DEMs. Although the paper is primarily a review of methods, three brief examples are presented at the end to demonstrate GCD using DoDs constructed from data extending over periods ranging from 70 to 90 years.

  3. Magnetic property and microstructure of SmCo magnetic recording films

    Institute of Scientific and Technical Information of China (English)

    LI; Ning; LI; Shuai

    2009-01-01

    Cr/SmCo/Cr thin films with Sm concentration of 37.7 at.% were deposited on glass substrates by magnetron sputtering. Meas-urement of magnetic properties showed that the SmCo film possessed good magnetic anisotropy, a high coercivity of 3019 kA/m and low magnetic exchange coupling. Microstructure analysis showed that crystallized SmCo5 magnetic phase, non-magnetic SmCo2 phase and Sm2Co7 phase co-existed ill the film. The non-magnetic SmCo2 phase might function as isolator of SmCo grains, leading to a decrease of magnetic exchange coupling. Moreover, a Cr2)3 oxide layer which could protect the SmCo layer from oxidation formed at the surface of the Cr cap layer.

  4. Exchange and crystal field in Sm-based magnets. II. Phenomenological analysis and density functional calculations

    Science.gov (United States)

    Kuz'Min, Michael D.; Steinbeck, Lutz; Richter, Manuel

    2002-02-01

    A technique of determining the exchange field Bex on the 4f shell of Sm atoms in Sm-based magnets is proposed. It makes use of the 4f intermultiplet transition in Sm, observed in inelastic neutron scattering (INS) experiments. The method is used to analyze previously published data for a number of Sm-Fe and Sm-Co intermetallics, for all of which Bex is determined. Additional information on intramultiplet transitions in SmCo5 and Sm2Co17 makes it possible to obtain more accurate Bex values as well as to estimate the leading crystal field parameter (CFP) A02 for these compounds. For the same systems an independent determination of A02 is carried out using published magnetization curves and the Bex values found from the INS spectra. The two ``experimental'' values of A02 (INS and magnetization) agree well. For comparison, theoretical Sm-Co exchange fields and CFP for SmCo5 and Sm2Co17 are obtained from full-potential density-functional calculations. The theoretical A02 are shifted toward more negative values with respect to their experimental counterparts by a few millielectronvolts. The calculated Sm-Co exchange fields are in fair agreement with the experimentally determined values of the total exchange field on Sm, Bex, the weak Sm-Sm exchange interaction being accountable for the remaining small discrepancies.

  5. Thermal neutron cross-section and resonance integral of the 152Sm(n,γ)153Sm reaction induced by pulsed neutrons

    Science.gov (United States)

    Van Do, Nguyen; Khue, Pham Duc; Thanh, Kim Tien; Hien, Nguyen Thi; Kim, Guinyun; Kim, Kwangsoo; Shin, Sung-Gyun; Kye, Yong-Uk; Cho, Moo-Hyun

    2017-10-01

    We measured the thermal neutron cross-section (σ0) and resonance integral (I0) of the 152Sm(n,γ)153Sm reaction relative to that of the 197Au(n,γ)198Au reaction. Sm and Au foils with and without a cadmium cover of 0.5 mm were irradiated with moderated pulsed neutrons produced from the electron linac. The induced activities of the reaction products were determined via high energy resolution HPGe detector. The present results: σ0,Sm =212±8 b and I0,Sm =3.02±0.19 kb are consistent with most of the existing reference data.

  6. Superconductivity in Co-doped SmFeAsO

    Energy Technology Data Exchange (ETDEWEB)

    Qi Yanpeng; Gao Zhaoshun; Wang Lei; Wang Dongliang; Zhang Xianping; Ma Yanwei [Key Laboratory of Applied Superconductivity, Institute of Electrical Engineering, Chinese Academy of Sciences, PO Box 2703, Beijing 100190 (China)], E-mail: ywma@mail.iee.ac.cn

    2008-11-15

    Here we report the synthesis and characterizations of SmFe{sub 1-x}Co{sub x}AsO (x = 0.10, 0.15) for the first time. The parent compound SmFeAsO itself is not superconducting but shows an antiferromagnetic order near 150 K, which must be suppressed by doping before superconductivity emerges. With Co doping in the FeAs planes, antiferromagnetic order is destroyed and superconductivity occurs at 15.2 K. Similar to LaFe{sub 1-x}Co{sub x}AsO, the SmFe{sub 1-x}Co{sub x}AsO system appears to tolerate considerable disorder in the FeAs planes. This result is important, suggesting a different mechanism for cuprate superconductors compared to the iron-based arsenide ones.

  7. Preparation and characterisation of compositionally graded SmCo films

    Science.gov (United States)

    Dias, Andre; Gomez, Gabriel; Givord, Dominique; Bonfim, Marlio; Dempsey, Nora M.

    2017-05-01

    A compositionally graded SmCo film has been prepared by magnetron sputtering using a Co target partially covered by a Sm foil. The film was deposited onto a 100 mm thermally oxidised Si substrate and then annealed ex-situ. The SmCo film has been used as a test sample to validate an in-house developed scanning MOKE (Magneto-Optic Kerr effect) system incorporating a pulsed magnetic field source capable of producing fields as high as 10 T. A 2D array of hysteresis loops was measured across the entire wafer. The evolution in coercivity measured along a selected 1D strip of the sample is correlated with changes in composition and crystallographic structures measured using Energy Dispersive Spectroscopy and X-ray diffraction. The high field Scanning MOKE system holds much potential for optimizing the extrinsic properties of known hard magnetic phases as well as in the search for new hard magnetic phases.

  8. Low energy neutron inelastic scattering on /sup 152/Sm nucleus

    Energy Technology Data Exchange (ETDEWEB)

    Fernandez, D.J.R.; Cabezas, S.R.; Lopez, M.R.

    1984-01-01

    A study of inelastic neutron scattering by the nucleus /sup 152/Sm at incident energies of 2.47 and 2.75 MeV using the coupled-channel method has been made. Consideration is made of the 2/sup +//0.122 MeV/, 4/sup +//0.366 MeV/ and 2/sup +//1.086 MeV/excited states. It is shown that in this energy range the process may be described satisfactorily considering /sup 152/Sm as a deformed nucleus with non-axial symmetry, given the quadrupole and hexadecapole deformations. The scattering process through the compound nucleus is calculated according to the Hauser-Feshbach formula with width fluctuation correction. It is shown that the presence of direct excitation process is partly due to the non-axiality of /sup 152/Sm.

  9. Scintillation, Afterglow and Thermoluminescence of CsI:Tl,Sm

    Energy Technology Data Exchange (ETDEWEB)

    Kappers, L A; Bartram, R H; Hamilton, D S; Lempicki, A; Brecher, C; Gaysinskiy, V; Ovechkina, E E; Nagarkar, V V, E-mail: lawrence.kappers@uconn.edu

    2010-11-15

    Experiments on co-doped CsI:Tl,Sm suggest that samarium electron traps scavenge electrons from thallium traps and that electrons subsequently released by samarium recombine non-radiatively with trapped holes, thus suppressing afterglow. These experiments support the inference that electrons tunnel freely between samarium ions and are trapped preferentially as substitutional Sm{sup +} near V{sub KA}(Tl{sup +}) centers where non-radiative recombination is the rate-limiting step. Combined radioluminescence, afterglow and thermoluminescence on single-crystal samples of CsI:Tl and CsI:Tl,Sm, recorded sequentially at adjusted gain settings following low-temperature irradiation, reveal reversible radiation damage as well.

  10. FEM × DEM: a new efficient multi-scale approach for geotechnical problems with strain localization

    Directory of Open Access Journals (Sweden)

    Nguyen Trung Kien

    2017-01-01

    Full Text Available The paper presents a multi-scale modeling of Boundary Value Problem (BVP approach involving cohesive-frictional granular materials in the FEM × DEM multi-scale framework. On the DEM side, a 3D model is defined based on the interactions of spherical particles. This DEM model is built through a numerical homogenization process applied to a Volume Element (VE. It is then paired with a Finite Element code. Using this numerical tool that combines two scales within the same framework, we conducted simulations of biaxial and pressuremeter tests on a cohesive-frictional granular medium. In these cases, it is known that strain localization does occur at the macroscopic level, but since FEMs suffer from severe mesh dependency as soon as shear band starts to develop, the second gradient regularization technique has been used. As a consequence, the objectivity of the computation with respect to mesh dependency is restored.

  11. Granular dynamics, contact mechanics and particle system simulations a DEM study

    CERN Document Server

    Thornton, Colin

    2015-01-01

    This book is devoted to the Discrete Element Method (DEM) technique, a discontinuum modelling approach that takes into account the fact that granular materials are composed of discrete particles which interact with each other at the microscale level. This numerical simulation technique can be used both for dispersed systems in which the particle-particle interactions are collisional and compact systems of particles with multiple enduring contacts. The book provides an extensive and detailed explanation of the theoretical background of DEM. Contact mechanics theories for elastic, elastic-plastic, adhesive elastic and adhesive elastic-plastic particle-particle interactions are presented. Other contact force models are also discussed, including corrections to some of these models as described in the literature, and important areas of further research are identified. A key issue in DEM simulations is whether or not a code can reliably simulate the simplest of systems, namely the single particle oblique impact wit...

  12. CFD-DEM Simulations of Current-Induced Dune Formation and Morphological Evolution

    CERN Document Server

    Sun, Rui

    2015-01-01

    Understanding the fundamental mechanisms of sediment transport, particularly those during the formation and evolution of bedforms, is of critical scientific importance and has engineering relevance. Traditional approaches of sediment transport simulations heavily rely on empirical models, which are not able to capture the physics-rich, regime-dependent behaviors of the process. With the increase of available computational resources in the past decade, CFD-DEM (computational fluid dynamics-discrete element method) has emerged as a viable high-fidelity method for the study of sediment transport. However, a comprehensive, quantitative study of the generation and migration of different sediment bed patterns using CFD-DEM is still lacking. In this work, current-induced sediment transport problems in a wide range of regimes are simulated, including 'flat bed in motion', `small dune', `vortex dune' and suspended transport. Simulations are performed by using SediFoam, an open-source, massively parallel CFD-DEM solver...

  13. Diagnostic of the temperature and differential emission measure (DEM based on Hinode/XRT data

    Directory of Open Access Journals (Sweden)

    P. Rudawy

    2008-10-01

    Full Text Available We discuss here various methodologies and an optimal strategy of the temperature and emission measure diagnostics based on Hinode X-Ray Telescope data. As an example of our results we present the determination of the temperature distribution of the X-rays emitting plasma using a filters ratio method and three various methods of the calculation of the differential emission measure (DEM. We have found that all these methods give results similar to the two filters ratio method. Additionally, all methods of the DEM calculation gave similar solutions. We can state that the majority of the pairs of the Hinode filters allows one to derive the temperature and emission measure in the isothermal plasma approximation using standard diagnostics based on the two filters ratio method. In cases of strong flares one can also expect good conformity of the results obtained using a Withbroe – Sylwester, genetic algorithm and least-squares methods of the DEM evaluation.

  14. Diálise - demência: estudo eletrencefalográfico de um caso

    Directory of Open Access Journals (Sweden)

    Duilton de Paola

    1980-09-01

    Full Text Available Relato de um caso de insuficiência renal crônica, mantido em hemodiálise por vários anos, desenvolvendo demência e alterações eletrencefalográficas típicas da síndrome diálise-demência. O eletrencefalograma apresentava paroxismos de ondas "sharp" e lentas difusas, elevado potencial os quais desapareceram com o tratamento, permanecendo o traçado apenas irregular. Houve melhora também da demência. Na tentativa de retirar o diazepínico, houve recrudescência dos sintomas. São comentados os aspectos clínicos e eletrencefalográficos da síndrome.

  15. DEM investigation of weathered rocks using a novel bond contact model

    Institute of Scientific and Technical Information of China (English)

    Zhenming Shi; Tao Jiang; Mingjing Jiang; Fang Liu; Ning Zhang

    2015-01-01

    The distinct element method (DEM) incorporated with a novel bond contact model was applied in this paper to shed light on the microscopic physical origin of macroscopic behaviors of weathered rock, and to achieve the changing laws of microscopic parameters from observed decaying properties of rocks during weathering. The changing laws of macroscopic mechanical properties of typical rocks were summarized based on the existing research achievements. Parametric simulations were then conducted to analyze the relationships between macroscopic and microscopic parameters, and to derive the changing laws of microscopic parameters for the DEM model. Equipped with the microscopic weathering laws, a series of DEM simulations of basic laboratory tests on weathered rock samples was performed in comparison with analytical solutions. The results reveal that the relationships between macroscopic and microscopic parameters of rocks against the weathering period can be successfully attained by para-metric simulations. In addition, weathering has a significant impact on both stressestrain relationship and failure pattern of rocks.

  16. The optical phonon spectrum of SmFeAsO

    OpenAIRE

    Marini, C.; Mirri, C.; Profeta, G.; Lupi, S.; Di Castro, D.; Sopracase, R.; Postorino, P.; Calvani, P.; Perucchi, A.; Massidda, S.; Tropeano, G. M.; Putti, M.; Martinelli, A.; Palenzona, A.; Dore, P.

    2008-01-01

    We measured the Raman and the Infrared phonon spectrum of SmFeAsO polycrystalline samples. We also performed Density Functional Theory calculations within the pseudopotential approximation to obtain the structural and dynamical lattice properties of both the SmFeAsO and the prototype LaFeAsO compounds. The measured Raman and Infrared phonon frequencies are well predicted by the optical phonon frequencies computed at the Gamma point, showing the capability of the employed ab-initio methods to ...

  17. The Appliance of Code Switching in the SM Language

    Institute of Scientific and Technical Information of China (English)

    LI Chang

    2014-01-01

    Code-switching, a natural phenomenon that consists of alternating two or more languages in bilinguals ’discourse, has traditionally been examined in its oral production. For over three decades, much attention has been emphasized on its form, meaning, and grammatical patterns. However, very little research focuses on code-switching in short message form. Code switch-ing is a quite common phenomenon. As cell phones become the communication tools used by people more frequently, short mes-sage language (SM) attracts more attention by people. Through analyzing the code switching in the SM language, it will help us understand more about its use and explore more information for our study.

  18. Sodium samarium tetrakis(polyphosphate, NaSm(PO34

    Directory of Open Access Journals (Sweden)

    Dan Zhao

    2010-07-01

    Full Text Available NaSm(PO34 has been prepared by solid state reactions. It belongs to type II of the structural family of MILnIII(PO34 compounds (MI = alkali metal and LnIII = rare earth metal and is composed of ∞(PO3n]n− polyphosphate chains with a repeating unit of four PO4 tetrahedra. The chains extend parallel to [100] and share O atoms with irregular SmO8 polyhedra, forming a three-dimensional framework which delimits tunnels occupied by Na+ cations in a distorted octahedral environment.

  19. Presence of magnetic excitations in SmFeAsO

    Science.gov (United States)

    Pelliciari, Jonathan; Dantz, Marcus; Huang, Yaobo; Strocov, Vladimir N.; Xing, Lingyi; Wang, Xiancheng; Jin, Changqing; Schmitt, Thorsten

    2016-09-01

    We measured dispersive spin excitations in SmFeAsO, a parent compound of SmFeAsO1 -xFx and one of the highest temperature superconductors of Fe pnictides (TC ≈ 55 K). We determine the magnetic excitations to disperse with a bandwidth energy of ca 170 meV at (0.47, 0) and (0.34, 0.34), which merges into the elastic line approaching the Γ point. Comparing our results with other parent Fe pnictides, we show the importance of structural parameters for the magnetic excitation spectrum, with small modifications of the tetrahedron angles and As height strongly affecting the magnetism.

  20. Petri nets SM-cover-based on heuristic coloring algorithm

    Science.gov (United States)

    Tkacz, Jacek; Doligalski, Michał

    2015-09-01

    In the paper, coloring heuristic algorithm of interpreted Petri nets is presented. Coloring is used to determine the State Machines (SM) subnets. The present algorithm reduces the Petri net in order to reduce the computational complexity and finds one of its possible State Machines cover. The proposed algorithm uses elements of interpretation of Petri nets. The obtained result may not be the best, but it is sufficient for use in rapid prototyping of logic controllers. Found SM-cover will be also used in the development of algorithms for decomposition, and modular synthesis and implementation of parallel logic controllers. Correctness developed heuristic algorithm was verified using Gentzen formal reasoning system.